Pennsylvania leads the U.S. in political ad spending. Also, former national security leaders endorse Vice President Harris. Plus, Manhattan District Attorney Alvin Bragg urges Judge Juan Merchan to reject Donald Trump's bid to toss his conviction. And gun safety group March for Our Lives makes a historic endorsement. Sen. Bob Casey, Amb. Susan Rice, Andrew Weissmann, and David Hogg join Lawrence O'Donnell.

President Biden calls for the "No One is Above the Law" Amendment. Also, Biden proposes Supreme Court term limits and an enforceable ethics code. Plus, Project 2025 threatens to make the Justice Department beholden to Donald Trump. And Trump tells Christian voters they would never need to vote again if he's elected. Rep. Jasmine Crockett, Sen. Sheldon Whitehouse, Eugene Vindman, and Rep. Eric Swalwell join Ali Velshi.