Tonight on The Last Word: Nikki Haley and Dean Phillips end their presidential campaigns after Super Tuesday. Also, the Texas Senate race is a key matchup in the fight for control of Congress. Plus, early voting is underway in Ohio ahead of the GOP primary. And Donald Trump's finances are under a microscope after big penalties. Rep. Adam Schiff, Rep. Colin Allred, Sen. Sherrod Brown, Andrew Weissmann, and Melissa Murray join Lawrence O'Donnell.