At least a third of this year's Republican electorate likes Donald Trump enough to vote for him, but it's no secret that the Republican establishment would prefer somebody like Sen. Marco Rubio. Elite Republican donors have been pouring money into the campaigns of Rubio, Sen. Ted Cruz, Gov. John Kasich, and, until recently, Jeb Bush, but Marlene Ricketts is going a step further. According to newly released campaign finance reports, Ricketts gave $3 million to Our Principles PAC — a group managed by Mitt Romney 2012 top aide Katie Packer, dedicated to destroying Trump's candidacy — accounting for nearly all the funds the PAC raised in January. Our Principles sent anti-Trump mailers and ran Trump-bashing ads before the Iowa, New Hampshire, and South Carolina contests.

So who is Marlene Ricketts? She and her husband, billionaire T.D. Ameritrade founder J. Joe Ricketts, have owned the Chicago Cubs since 2009, led the charge to tie then-Sen. Barack Obama to the Rev. Jeremiah Wright in the 2008 election, and backed the brief campaign of Wisconsin Gov. Scott Walker (R) this election cycle. Their son is Nebraska Gov. Pete Ricketts (R). Marlene Ricketts isn't just financing ads calling Trump a GOP-wrecking fake conservative, though; she also gave $10,000 each last year to super PACs backing Rubio, Bush, Cruz, Rick Perry, Sen. Lindsey Graham, and New Jersey Gov. Chris Christie. Our Priorities may not have had much luck slowing Trump so far, but it will "launch aggressive efforts" before Super Tuesday on March 1, Packer told USA Today in an email. "We will continue to shine a bright light on Trump's liberal statements and inconsistencies." Or they will at least as long as Ricketts is writing big checks. Peter Weber

Jared Kushner, President Trump's son-in-law and senior adviser, has used a private email address he set up after the election to communication about White House matters with other administration officials, Politico reported Sunday and Kushner's lawyer, Abbe Lowell, confirmed. Kushner and his wife, Ivanka Trump, set up the private family domain and new email addresses in December.

Kushner mostly "uses his White House email address to conduct White House business," Lowell said in a statement. "Fewer than 100 emails from January through August were either sent to or returned by Mr. Kushner to colleagues in the White House from his personal email account," mostly "forwarded news articles or political commentary." To comply with the Presidential Records Act, Kushner forwarded all non-personal emails to his White House account, Lowell said, and "all have been preserved in any event." The lawyer did not say who determined which emails were personal and which were business-related.

Other White House official have also conducted business over personal email, including former White House Chief of Staff Renice Priebus and chief strategist Stephen Bannon, Politico reports. During the 2016 campaign, Trump relentlessly hammered opponent Hillary Clinton for her use of private email while secretary of state, a practice that led to a lengthy FBI investigation. Trump still talks of having the Justice Department prosecute Clinton. There is no indication that Kushner sent classified information over his private email account, and a government official tells The New York Times that unlike Clinton, the Kushners did not set up a private server. Still, Politico says, "Kushner's representatives declined to detail the server or security measures on it." You can read more at Politico. Peter Weber

On Sunday evening, President Trump issued a presidential proclamation placing indefinite travel restrictions on visitors from eight nations: Chad, Libya, Syria, Yemen, North Korea, Venezuela, Iran, and Somalia. Sudan was dropped from Trump's original travel bans, the latter of which expired Sunday, while Chad, North Korea, and Venezuela were added. The proclamation, which Trump administration officials say carries the weight of an executive order, spells out different restrictions for different countries, ranging from total bans for North Korea, Syria, Libya, Yemen, and Chad to just a ban on Venezuelan government officials and their families. It goes into effect Oct. 18.

A senior administration official said the new travel restrictions are "conditions-based, not time-based," and could be revisited if a country becomes willing or able to meet minimum passenger screening and information-sharing standards. Trump's ban on refugees, set to expire Oct. 24, will be addressed separately. It is unclear how the new proclamation will affect the Supreme Court challenge to Trump's travel bans set to be litigated in oral arguments Oct. 10.

Trump's second ban, most of which the Supreme Court allowed to take effect over the summer, affected Muslim-majority countries. With the new ban, "six of President Trump's targeted countries are Muslim," said Anthony Romero, executive director of the American Civil Liberties Union. "The fact that Trump has added North Korea — with few visitors to the U.S. — and a few government officials from Venezuela doesn't obfuscate the real fact that the administration's order is still a Muslim ban. ... President Trump's original sin of targeting Muslims cannot be cured by throwing other countries onto his enemies list." The White House denies that the ban targets Muslims specifically. Peter Weber

At least six people were injured Sunday morning in a shooting at Burnett Chapel Church of Christ in Antioch, Tennessee, local officials say. An NBC News report says one person was killed.

Police were called around 11:15 a.m. with reports of multiple shots fired. The church's Sunday morning service began at 10 a.m.

The shooting victims have been transported to a nearby hospital, and Fox News reports one person has been taken into police custody. The identity and motives of the shooter are so far unknown.

This is a breaking story that will be updated as more details become available. Bonnie Kristian

Oakland A's catcher Bruce Maxwell became the first MLB player to join NFL players like Colin Kaepernick by kneeling in protest during the national anthem. Maxwell took a knee before his team's Saturday evening game against the Texas Rangers.

"My decision has been coming for a long time," he explained after the game. "I finally got to the point where I thought the inequality of man is being discussed, and it's being practiced from our president."

"The point of my kneeling is not to disrespect our military; it's not to disrespect our Constitution; it's not to disrespect this country," Maxwell continued. "My hand over my heart symbolizes the fact that I am and I'll forever be an American citizen, and I'm more than grateful to be here. But my kneeling is what is getting the attention because I'm kneeling for the people that don't have a voice."

Maxwell acted in response to President Trump's weekend attacks on Kaepernick and and other athletes who kneel during the anthem to protest police brutality and racial injustice. "Wouldn't you love to see one of these NFL owners, when somebody disrespects our flag, to say, 'Get that son of a bitch off the field right now?'" Trump asked a rally crowd Friday. Since Trump's initial comments, pro athletes, coaches, and owners have united in opposition to his remarks. Bonnie Kristian

Jacksonville Jaguars and Baltimore Ravens players in London for a game Sunday locked arms and took a knee during the U.S. national anthem in solidarity with athletes like Colin Kaepernick who have come under attack by President Trump this weekend. The teams' coaches and Jaguars owner Shahid Khan joined the gesture of defiance of Trump's critique of Kaepernick's stand against police brutality and racial injustice in America.

Ravens owner Steve Bisciotti also issued a statement endorsing the athletes' right to protest on the field. "We respect [our players'] demonstration and support them 100 percent," he said. "All voices need to be heard. That's democracy in its highest form."

Meanwhile, Mike Tomlin, coach of the Pittsburgh Steelers, announced Sunday that his team would not "participate in the anthem" in the afternoon game against the Chicago Bears. The Steelers have decided to stay in the locker room during the anthem, Tomlin said, so players aren't "forced to choose sides."

Rex Ryan, former coach of the Buffalo Bills and the New York Jets, expressed dismay at Trump's comments while speaking on ESPN's Sunday NFL Countdown. "I supported Donald Trump," Ryan said. "But I'm reading these comments and it's appalling to me, and I'm sure it's appalling to almost any citizen in our country. It should be."

New England Patriots owner Robert Kraft, who donated to Trump's inaugural festivities, said he was "deeply disappointed" in the president's statements. Bonnie Kristian

During an appearance on ABC's This Week Sunday, Treasury Secretary Steven Mnuchin addressed President Trump's weekend attacks on pro athletes like Colin Kaepernick who kneel during the national anthem to protest police brutality and racial injustice.

Mnuchin argued free speech is not at issue because the NFL is a private organization which can set its own rules, eluding the question of how criticism from Trump, a government official, affects that equation. "This isn't about Democrats. It's not about Republicans. It's not about race; it's not about free speech. They can do free speech on their own time," Mnuchin said. "This is about respect for the military and first responders and the country."

The treasury secretary maintained Trump simply wants the NFL to require all athletes to stand during the national anthem, a specification Trump did not make when he tweeted that kneeling protests "should not be allowed."

"The NFL has all different types of rules. You can't have stickers on your helmet; you have to have your jersey tucked in," Mnuchin said. "I think what the president is saying is that the owners should have a rule that players should have to stand in respect for the national anthem." Bonnie Kristian

Germans head to the polls Sunday in a vote anticipated to give Chancellor Angela Merkel her fourth term in office. Her center-right Christian Democratic Union (CDU) is predicted to take about 34 percent of Bundestag seats with which it will form a coalition government with Merkel again at the head.

"There are a lot of problems in other countries, think Donald Trump or Brexit," one Berlin voter told NBC News. "With Merkel there is a sense that there is no great problem that she couldn't overcome, and that she's a politician you can trust."

The growth of the far-right Alternative for Germany (AfD) party — which campaigned on a populist, anti-immigration message and could well become the Bundestag's third-largest party out of six represented — has raised alarm among many Germans concerned about extremism. Turnout is expected to be high. Bonnie Kristian