Tonight on The Last Word: Sen. Mark Kelly widens his lead over Blake Masters in the Arizona Senate race. Also, Maura Healey flips Massachusetts's governor's seat. Plus, Andrew Campbell becomes the first Black woman elected to a statewide office in Massachusetts. And Kansas Rep. Sharice Davids wins her third term after campaigning to protect abortion access. Steve Kornacki, Sen. Gary Peters, Gov.-elect Maura Healey, Massachusetts Attorney General-elect Andrea Campbell and Rep. Sharice Davids join Lawrence O'Donnell.

Tonight on The Last Word: Democrats retain the majority in the U.S. Senate. Also, President Biden says he's unsure if there are enough votes to codify abortion rights. Plus, Democrats flip a long-held GOP House seat in Washington. And Democrats add seats in legislatures of key 2024 battleground states. Sen. Gary Peters, White House Chief of Staff Ron Klain, Rep.-elect Marie Gluesenkamp Perez, Jessica Post and Simon Rosenberg join Lawrence O'Donnell.