The U.S. Supreme Court will hear arguments in a consequential case that will determine Donald Trump's eligibility to remain on the ballot. Meanwhile, Senate Republicans kill the bipartisan border bill after Trump opposes it. Self-inflicted GOP defeats fuel dysfunction on Capitol Hill. Ankush Khardori, Carol Leonnig, Jon Allen, Sen. Jeff Merkley, Mike Zamore, Maria T Kumar, Reed Galen, and Neil Irwin join.