Despite President Joe Biden's calls for quick action after another mass shooting and Senate Majority Leader Charles Schumer's vow to force votes on the Senate floor, the calcified politics of gun rights leave congressional action almost impossible to envision. Plus, CNN Tonight anchor, Don Lemon joins to talk about his new book and his experiences in covering politics over the last 5 years. Guest: Don Lemon, CNN anchor and author of the book, "This is the Fire: What I Say to My Friends About Racism"