We’re covering a momentous day in Washington, tonight’s Democratic debate, and a ruling against the Affordable Care Act. We also present the decade in pictures. | | By Chris Stanford | | At a campaign rally on Wednesday, President Trump said the impeachment vote was an attempt to "nullify the ballots of tens of millions of patriotic Americans." Pete Marovich for The New York Times | | The Constitution doesn’t dictate how the process should work, so it could remain unresolved until next year, when lawmakers return from recess. Here’s what we know. | | It’s unlikely that enough senators would vote to remove Mr. Trump. Senator Mitch McConnell, the majority leader, has made clear that he views the House’s case as “weak” and that he would prefer a swift trial that doesn’t call additional witnesses. | | Response: At a campaign rally in Michigan, Mr. Trump insisted that the impeachment was a fabrication by those who can’t tolerate his presidency: “Crazy Nancy Pelosi’s House Democrats have branded themselves with an eternal mark of shame.” | | Go deeper: The story of Lev Parnas and Igor Fruman, the Soviet-born businessmen who helped Rudy Giuliani conduct a shadow diplomacy campaign in Ukraine, is a reminder that the case against Mr. Trump is more than a political battle in Washington. | | Speaker Nancy Pelosi and other Democratic leaders addressed the news media after Wednesday's vote. Alyssa Schukar for The New York Times | | After five debates including at least 10 presidential candidates, the face-off tonight will be the primary’s smallest yet. | | The seven contenders: Joe Biden, Pete Buttigieg, Amy Klobuchar, Bernie Sanders, Tom Steyer, Elizabeth Warren and Andrew Yang. Here’s what to watch for. | | The details: The event in Los Angeles begins at 8 p.m. Eastern, hosted by PBS NewsHour and Politico. | | The three-judge panel sent the case back to a judge in Texas to determine which parts of the nearly decade-old health law could survive without the mandate. Judge Reed O’Connor struck down the entire law last year, but Wednesday’s ruling asked that he “employ a finer-toothed comb.” | | The details: If the law were thrown out, about 17 million Americans could lose coverage. Additionally, more than 50 million with pre-existing medical conditions could be denied health insurance, and insurers would no longer have to cover people up to age 26 under their parents’ plans. | | What’s next: Given Judge O’Connor’s time-consuming assignment, the issue is unlikely to be resolved before the 2020 election. Xavier Becerra, the California attorney general who led 21 states that intervened in the case, plans to appeal the decision to the Supreme Court. | | Sergey Ponomarev for The New York Times | | Photo editors at The Times have pored over images of moments both fresh and faded to tell the story of the 2010s, a decade of seemingly ceaseless upheaval. | | Above, migrants arriving in Greece in 2015, when more than one million entered Europe, many fleeing war and poverty in the Middle East and elsewhere. | | PAID POST: A Message From XBrand | Renewable Energy in Today's Age | Look around you...All of the things that you love about this planet can be used to power it. the sun, rain, wind, tides and waves. We are creating renewable enery that benefits you and our planet, more efficiently and inexpensively. Recharge today with something different. | | Learn More | | | New York Daily News, via Getty Images | | Snapshot: Above, an archival view of Rikers Island, New York City’s main prison complex, which is scheduled to close in 2026. Our architecture critic argues that redefining what jails look like might help heal the city’s troubled penal system. | | Late-night comedy: “Of course, it’s a dark stain on his legacy; but on the bright side, Trump finally managed to win a popular vote,” Jimmy Fallon said. | | Craig Lee for The New York Times | | Kim Jong-un has sent repeated signals that he will abandon diplomacy unless Washington meets his Dec. 31 deadline to return to nuclear negotiations with more concessions. | | Over the past few months, he has twice done something to publicize his resolve, visiting a mountain sacred to his people as their mythical birthplace. That’s Mount Baekdu, a 9,029-foot peak near the Chinese border. | | In 2013, he traveled there two weeks before he executed his uncle, then No. 2 in his regime. | | That’s it for this briefing. See you next time. | | Thank you Mark Josephson, Eleanor Stanford and Chris Harcum provided the break from the news. Mike Ives of the briefings team wrote today’s Back Story. You can reach us at briefing@nytimes.com. | | P.S. • We’re listening to “The Daily.” Today’s episode is about how the Democratic Party united over impeachment. • Here’s today’s Mini Crossword, and a clue: Sound from a pig (four letters). You can find all our puzzles here. • Two of The Times’s Op-Docs have been shortlisted for an Academy Award in the documentary short subject category. Watch the contenders here and here. | | Were you sent this briefing by a friend? Sign up here to get the Morning Briefing. | | |