Tonight on The Last Word: Sen. Cory Booker is “disrupting business as usual” with a marathon Senate speech. Also, Vladimir Putin escalates the war in Ukraine. Plus, The Wall Street Journal reports Mike Waltz had other national security Signal chats. And Kentucky Democrats eye retiring Mitch McConnell’s Senate seat. Rep. Mark Pocan, Rep. Eric Swalwell, Melissa Murray, David Rothkopf, Rep. Marilyn Strickland, and Col. Pam Stevenson join Symone Sanders.