Tonight on The Last Word: President Biden says Donald Trump threatens the "sacred cause" of democracy. Also, Team Biden starts 2024 with a strong economy. Plus, Rep. Andy Kim is running in the primary against Sen. Bob Menendez. And Democrats look to defeat Lauren Boebert in Colorado's 4th Congressional District. Rep. Jamie Raskin, Barbara McQuade, Paul Butler, Heather Long, Rep. Andy Kim, and John Padora join Jonathan Capehart.