Six female Democratic senators called on Sen. Al Franken (D-Minn.) to step down Wednesday, just hours after a seventh woman accused him of inappropriate conduct, BuzzFeed News reports. In a lengthy Facebook post, Sen. Kirsten Gillibrand (D-N.Y.) described her disappointment in learning her "friend" had "engaged in behavior towards women that is unacceptable."

"Enough is enough," Gillibrand wrote. "The women who have come forward are brave and I believe them."

Democratic Sens. Maggie Hassan (N.H.), Mazie Hirono (Hawaii), Patty Murray (Wash.), Claire McCaskill (Mo.), and Kamala Harris (Calif.) also added their voices to the chorus:

Franken has admitted to some of the allegations against him, including that he groped radio host Leeann Tweeden during a 2006 USO tour. Tweeden's allegation, the first made against the senator, came nearly three weeks ago. On Wednesday, he denied the allegations brought by a seventh woman who chose to remain anonymous, calling them "categorically not true." Jeva Lange

On Tuesday, Britain's House of Commons is scheduled to vote on, and expected to reject, Prime Minister Theresa May's negotiated Brexit plan, throwing Britain's exit from the European Union into further uncharted waters. On Monday morning, the European Court of Justice, the EU's top court, answered one unresolved Brexit question, ruling that if Britain so desires, it can unilaterally cancel its divorce any time before it becomes final on March 29, 2019 — or during any extension to that exit date. Revoking the Article 50 exit clause would have to "follow a democratic process," the court ruled, meaning that in Britain, Parliament would have to approve calling off Brexit.

The ECJ issued its ruling in response to a question from a group of anti-Brexit U.K. politicians, and the court said Monday that its aim is to "clarify the options open to MPs" before they vote on Tuesday. The upshot is that staying in the EU is now "a real, viable option," BBC Brussels correspondent Adam Fleming notes, cautioning that "a lot would have to change in British politics" for Brexit to be actually called off.

Assuming lawmakers rejected May's proposal, Parliament could "follow a number of different courses of action, including backing a Norway-type deal or amendments that make significant changes made to the backstop agreement — the insurance policy that prevents a hard border in Ireland," Laura Silver says at BuzzFeed News. "The defeat would also pave the way to a second referendum on leaving the EU, which has already been discussed in Downing Street. It is unclear whether or not remaining in the EU entirely would be an option on the ballot paper." Peter Weber

The low-level U.S. delegation to global climate talks in Katowice, Poland, made waves Saturday night, joining with Saudi Arabia, Russia, and Kuwait in an attempt to weaken support for a United Nations report warning of catastrophic consequences if the world fails to combat rising global temperatures, The Washington Post reports. The Intergovernmental Panel on Climate Change released its latest report on climate change to coincide with the 24th Conference of the Parties to the United Nations Framework Convention on Climate Change (COP24), a two-week conference to create rules for implementing the 2015 Paris climate accord.

"The United States was willing to note the report and express appreciation to the scientists who developed it, but not to welcome it, as that would denote endorsement of the report," a State Department spokesman said. "The United States has not endorsed the findings of the report." President Trump, who also downplayed similar dire warnings from a report issued last month by 13 U.S. federal agencies, started withdrawing the U.S. from the Paris accord in 2017, but the U.S. still has a seat at the table until it can formally withdraw in November 2020.

The Natural Resources Defense Council's Jack Schmitdt told the Post that before the U.S. moved "to 'note'" the U.N. report at Saturday night's meeting, "there was going to be an agreement to welcome" it. On Monday, the U.S. is hosting a show in Poland promoting coal and other fossil fuels.

Since the U.S. government released its National Climate Assessment the day after Thanksgiving, the Trump administration has cleared a path for coal-fired plants to evade previous rules to capture pollution and authorized gas drilling on once-protected federal lands. Global carbon-dioxide emissions rose last year, after staying flat since 2014, and U.S. emissions are projected to rise 2.5 percent in 2018, after falling in 2017 and six other years in the past decade, according federal figures. Peter Weber

In court filings Friday, federal prosecutors in the Southern District of New York linked President Trump to two crimes his former lawyer Michael Cohen admitted to committing on his behalf in 2016. "What the prosecutors did not say in Mr. Cohen's sentencing memorandum," The New York Times reported Sunday, "is that they have continued to scrutinize what other executives in the president's family business may have known about those crimes, which involved hush-money payments to two women who had said they had affairs with Mr. Trump," porn actress Stormy Daniels and former Playboy model Karen McDougal.

The federal prosecutors did not directly accuse Trump of committing a crime, but they said Friday that "with respect to both payments, [Cohen] acted in coordination with and at the direction of" Trump. Cohen has said he believed Trump personally approved the Trump Organization's decision to reimburse him for the hush payments, and he told prosecutors that the company's chief financial officer, Allen Weisselberg, was involved in discussions about the payments, the Times reports.

"While the prevailing view at the Justice Department is that a sitting president cannot be indicted, the prosecutors in Manhattan could consider charging him after leaving office," the Times notes. Trump still owns the Trump Organization through a trust, and the company and its executives — including Trump's children — are not protected by the Justice Department opinion against prosecuting Trump in office.

"There's a very real prospect that on the day Donald Trump leaves office, the Justice Department may indict him, that he may be the first president in quite some time to face the real prospect of jail time," Rep. Adam Schiff (D-Calif.), the incoming chairman of the House intelligence committee, said on CBS's Face The Nation. "The bigger pardon question may come down the road as the next president has to determine whether to pardon Donald Trump." Schiff has previously said the intelligence committee will examine Trump's family business. Peter Weber

With Nick Ayers unexpectedly taking himself out of the running to be President Trump's next chief of staff, Trump "finds himself in the unaccustomed position of having no obvious second option," The New York Times reports. Several names are being floated to replace Chief of Staff John Kelly, including White House budget chief Mick Mulvaney, Rep. Mark Meadows (R-N.C.), Treasury Secretary Steven Mnuchin, Trade Representative Robert Lighthizer, Acting Attorney General Matthew Whitaker, former New Jersey Gov. Chris Christie (R), and former Trump campaign official David Bossie.

But unusually, it's not clear who's even interested in the job. Meadows, a far-right Trump loyalist, wants the position but Trump isn't sure, Politico reports, and Mnuchin "isn't eager to take the post." Mulvaney also is "not interested in becoming chief of staff," The Associated Press reports, and The Washington Post says the White House is reluctant to move Lighthizer because of his key role in trade negotiations with China.

White House chief of staff has traditionally been a stepping stone to greater power, but Trump's first two chiefs of staff, "Kelly and Reince Priebus before him, have left as diminished and arguably humiliated figures, unable to control the wild chaos of this president's White House," Politico notes. "Priebus was marginalized and mocked before he was abandoned on an airport tarmac," and "Trump had recently stopped speaking to Kelly," who "wasn't even allowed to announce his own resignation despite a reported agreement with Trump that he could do so."

"You really do have to wonder why anybody would want to be Donald Trump's White House chief of staff given that so far it's been mission impossible," Chris Whipple, the author of a history of White House chiefs of staff, tells Politico. And Kelly's successor will also have to deal with a tough re-election campaign, an incoming Democratic House majoriy, and a special counsel investigation that is circling ever closer to the White House. Peter Weber

President Trump was so confident that Nick Ayers, chief of staff to Vice President Mike Pence, would be his next chief of staff that the White House has already drafted the announcement, The New York Times reports. Instead, on Sunday evening, Ayers confirmed that he is leaving the White House at the end of the year, around the same time as outgoing White House Chief of Staff John Kelly.

Ayers, 36 and the father of young triplets, reportedly agreed to be Trump's chief of staff on a short-term basis, but Trump wanted a chief of staff that would stay through the rest of his first term. Ayers will apparently head a pro-Trump super PAC from Georgia.

"For decades, the job of White House chief of staff was once among Washington's most desirable jobs — a pinnacle of access and power," Politico notes. "It's a different story under Trump. A job that was once a ticket to Washington royalty has recently become a laughing stock."

Still, advisers to Trump were "stunned by the turn of events," and "one former senior administration official called it a humiliation for Mr. Trump and his adult children, an emotion that the president tries to avoid at all costs," reports Maggie Haberman at Times. "With a head of blond hair, Mr. Ayers somewhat resembles Mr. Trump in his younger days, a fact that the president often looks for as a positive signal. The president had an unusual affinity for Mr. Ayers, telling aides who expressed concern about Mr. Ayers that he liked him."

Trump downplayed the news, tweeting Sunday night: "Fake News has been saying with certainty it was Nick Ayers, a spectacular person who will always be with our #MAGA agenda. I will be making a decision soon!" Peter Weber

Sen. Rand Paul (R-Ky.) expressed disatisfaction on Meet the Press Sunday with President Trump's selection of William Barr to be his next attorney general.

"I'm concerned that [Barr has] been a big supporter of the Patriot Act, which lowered the standard for spying on Americans," Paul said. "And he even went so far as to say, you know, 'The Patriot Act was pretty good, but we should go much further.'"

"I'm disturbed that he's been a big fan of taking people's property, civil asset forfeiture, without a conviction," Paul continued. "Many poor people in our country have cash taken from them, and then the government says, 'Prove to us where you got the cash, and then you can get it back.' But the burden is on the individual. It's a terrible thing called civil asset forfeiture. He's a big fan of that."

Paul noted he has not yet decided how he will vote on Barr's nomination. Watch the full interview below. Talk of Barr begins around the eight-minute mark, and Paul and host Chuck Todd also discuss Special Counsel Robert Mueller's investigation, Saudi Arabia, and more. Bonnie Kristian