Former Secretary of State Hillary Clinton asserted at Saturday night's Democratic debate that, when it comes to the mess in the Middle East, "the bulk of the responsibility is not ours." That got Vermont Sen. Bernie Sanders going.

"The invasion of Iraq has unraveled the area completely," Sanders said. "I don't think any sensible person would disagree that the invasion of Iraq led to the massive level of instability we are seeing right now."

Sanders also called the 2003 invasion of Iraq, which Clinton supported as a senator from New York, "one of the worst foreign policy blunders in the history of the United States."

Clinton owned it. "I have said the invasion of Iraq was a mistake," she said. Stephanie Talmadge

On Thursday night, Special Counsel Robert Mueller's office released a trove of documents related to its case against Paul Manafort, President Trump's former campaign chairman, in response to a request for more information from Manafort's lawyers. The new documents contain seven search warrants, four of which are partially redacted because prosecutors are withholding names of informants or information about ongoing investigations.

One of the warrants, for data from five AT&T phone numbers, was obtained on March 9, which is two weeks after Mueller issued his second indictment against Mueller, suggesting that Mueller's team might still be investigating news lines of inquiry against Manafort. He and Rick Gates were first indicted in October for fraud, money laundering, and other financial crimes. The new phone-related affidavit "contains redactions — albeit more substantial ones — relating to ongoing investigations that are not the subject of either of the current prosecutions involving Manafort," Mueller's filing states.

It isn't clear how the five phone numbers relate to Manafort, but Politico notes that Manafort's defense team accidentally revealed in January that at least one employee in a Manafort consulting business was cooperating with the FBI. Perhaps more ominously, The Daily Caller's Chuck Ross points out, "the timing of the warrant is also significant in that it was issued a week after former Manafort business partner Gates accepted a plea deal with Mueller's team."

"The government has said they have a continuing investigation," Manafort attorney Kevin Downing said at last week's hearing, where he asked for more information from Mueller's team. Earlier this week, Mueller's office said that the Justice Department had authorized it to specifically investigate if Manafort called with Russians to interfere in the 2016 election. So far, Mueller has charged 19 people, including 13 Russians; five people have pleaded guilty; and one person has already been sentenced. Peter Weber

Until Thursday, President Trump had remained uncharacteristically silent about Stormy Daniels, the porn star whose October 2016 nondisclosure agreement to stay silent about an alleged 2006 extramarital affair with Trump has sparked a heated legal and PR battle. And what Trump said Thursday seemed pretty innocuous. "Did you know about the $130,000 payment to Stormy Daniels?" a reporter asked him on Air Force One. "No," Trump said, adding that he did not know why his lawyer Michael Cohen paid her or where he got the money.

Still, that brief exchange was enough to make Daniels' lawyer, Michael Avenatti, do a victory dance. Avenatti and Daniels are suing Cohen and Trump to invalidate the NDA on the grounds that Trump isn't a party to the agreement. Cohen and Trump are suing Daniels for up to $20 million for breaking the NDA. "The strength of our case just went up exponentially," Avenatti tweeted. "You can't have an agreement when one party claims to know nothing about it. #nodiscipline."

"We think this is basically game over when it comes to our client," Avenatti told MSNBC's Lawrence O'Donnell on Thursday night. "We have a principal party to the agreement who admits, on camera, that supposedly he didn't know anything about a principal term of the agreement. Well, that means he doesn't know anything about the agreement, which means there is no agreement."

David Super, a professor of contract law at Georgetown, largely agreed with Avenatti's assessment, telling The Washington Post that Trump's comments "largely destroy" his own argument that the nondisclosure agreement is valid. "Nothing in the contract, and nothing in his remarks, suggests that he had given Cohen the right to make binding commitments on his behalf," Super said. "With these comments, we are almost certain to see this litigation play out in a public court case rather than in private arbitration," where Trump and Cohen asked the courts to send the case on Monday. Peter Weber

On Thursday night, President Trump poured gas on his nascent trade was with China, saying he may impose another $100 billion in tariffs on Chinese goods, on top of the more than $50 billion his administration and Beijing have already announced for each other. This is something "just about everyone on both sides thinks is a terrible idea," Jimmy Kimmel said on Thursday's Kimmel Live. "Yesterday, he defended his plan by highlighting our trade deficit with the Chinese. He tweeted: 'When you're already $500 billion DOWN, you can't lose!' — which, by the way, is the Trump company motto."

"The thing about this tweet and the way Trump is playing this is, he seems to think that if one side has a deficit, that side is losing by $500 billion," Kimmel said. "That's not how trade deficits work. So to help the president understand it in very simple terms, we asked a second-grader named Shiloh to help explain it to him." And do you know what? Shiloh did a pretty good job — Trump conceivably could learn something from her presentation, and he's not alone.

"That makes a lot of sense," Kimmel said, thanking Shiloh. "And be honest, how many of you didn't know any of that stuff either?" Kimmel raised his hand, too. Peter Weber

A court in Seoul convicted former South Korean President Park Geun-hye of bribery, extortion, abuse of power, and other corruption-related charges on Friday and sentenced her to 24 years in prison and a $16.8 million fine. Park, who maintains her innocence, was not in court to hear the verdict. She has a week to appeal the verdict; she claimed to be ill but has refused to appear in court since October. "It's inevitable that the defendant should be held strictly responsible for her crimes, if only to prevent the unfortunate event of (a president) abusing the power given by the people and causing chaos in state affairs," Seoul Central District Court chief judge Kim Se-yun said in the televised hearing.

Park was impeached in December 2016 and removed from office in March 2017 by the Constitutional Court, and the scandal has also taken down longtime ally Choi Soon-sil, who is serving 20 years, and dozens of other government and business leaders, most prominently Samsung heir apparent Lee Jae-yong, whose five-year sentence was cut in half and suspended. Park is just the latest leader in South Korea to fall to corruption charges, The Associated Press notes. Her predecessor, fellow conservative Lee Myung-bak, was arrested and sent to jail last month on unrelated corruption charges, and the president before him, liberal Roh Moo-hyum, jumped to his death in 2009 as his family came under investigation for corruption. Peter Weber

It's hard to imagine having a worse week at work than EPA Administrator Scott Pruitt's.

A top aide, Samantha Dravis, resigned; his ethics firewall is crumbling over an apparent sweetheart rental deal from the wife of a top lobbyist whose firm lobbies the EPA; two EPA officials and a White House official tell The Washington Post that Pruitt ordered two hefty and problematic raises he just denied knowing about on Fox News; the Fox News interview backfired; and it was reported that he retaliated against officials who objected to a proposed $100,000-a-month charter jet service, $70,000 for two office desks, and the use of sirens when he was running late. Among other scandals.

Trump backed Pruitt on Thursday, telling reporters en route to West Virginia that he has confidence in Pruitt and, on the way back, that he'll "have to look at" at Pruitt's reported actions but "he's done a terrific job. ... I think that Scott has done a fantastic job. I think he's a fantastic person." Still, Trump's reportedly asking friends and advisers what he should do with Pruitt, he was put off by Pruitt's Fox News interview, and while CNN says Trump started the week suggesting Pruitt might replace Jeff Sessions as attorney general, the job Pruitt apparently really wants, the EPA administrator ended the week with mounting questions about whether he can keep the job he has.

Conservative groups, Republican senators, and Rush Limbaugh are pushing to keep Pruitt where he is, and Trump told reporters Thursday that "Scott's doing a great job where he is," and he has no plans to move him. "I just left coal and energy country, they love Scott Pruitt," he said. "They feel very strongly about Scott Pruitt." For now, Politico reports, "Pruitt's situation is a rare instance in which the president has remained loyal longer than other members of the White House staff, who are eager to see Pruitt gone." Peter Weber

It's estimated that 40,000 children mine cobalt in the Democratic Republic of Congo, difficult work that pays little and prevents them from getting an education, but one young miner was recently able to leave that life behind and take on a new role: student.

Cobalt is used in electronics batteries, and a CBS News investigation last month put a spotlight on the children who are breathing in toxins and injuring themselves while mining. Some are orphans like Ziki Swaze, 11, who mined in order to provide for his elderly grandmother and siblings. Swaze told CBS News correspondent Debora Patta that he felt "very bad because I can see my friends going to school, and I am struggling." His dream, he told her, was to get an education.

Viewers were touched by Swaze's story, and gave enough money to send Ziki and his siblings Ruth, Emerson, and Simitri to school. The school is run by Sister Catherine Mutindi of Good Shepherd International Foundation, who has helped more than 1,000 kids leave the mines. Good Shepherd, which is trying to raise enough money to help another 500 child miners, also provides money for Swaze's household, as his grandmother cannot work. Swaze told CBS News if he becomes a government minister, "I would ask all the children who work in the mines to go to school so they can become like me"

There's no need for kids to mine cobalt, as there are enough adults to do the work, Patta said, and despite airing the segment last month, CBS News has not heard back from any of the major companies who use cobalt mined in the Democratic Republic of Congo. She did have an update on Ziki Swaze: he was so excited to be in school that on his second day, he got there hours early and cleaned the classroom before anyone else arrived. Catherine Garcia

During a candid moment, Sen. Dean Heller (R-Nev.) admitted he knows that if he wants to win re-election this November, voter turnout needs to be very low.

The Las Vegas Review-Journal obtained audio of a speech he gave to the Nevada Republican Men's Club on Tuesday, where he warned the audience that he "can't win" if there are "100,000 more registered Democrats than Republicans" in Nevada. Right now, Democrats outnumber Republicans in Nevada by about 59,000, the Nevada secretary of state's office reports, and "if we can get that number below 50,000, I can't lose," Heller said. "I can't lose. Because the ratio of voter turnout in a non-presidential year — we're in a non-presidential year — the tendency of Republicans to vote is higher than the other party."

Despite previously going back and forth on the Affordable Care Act, Heller told the audience he's all in on replacing it, and also said Congress must find "relief for DACA recipients." He predicted that in November, Republicans will "end up with 53, 54 seats," and praised President Trump, saying he thinks "this country is heading in the right direction." Catherine Garcia