Tonight on The Last Word: The Supreme Court gives Donald Trump even more power one year after the immunity ruling. Also, Trump family business interests raise ethical concerns. Plus, Trump wields tariffs to stop Canada taxes on tech giants. And a Republican lawmaker in a red state says that state won’t survive the Trump budget bill. Laurence Tribe, Tim O’Brien, Rep. Chris Pappas, Mini Timmaraju, and Rep. Kelly Morrison join Ali Velshi.

Tonight on The Last Word: Senate Democrats slam Donald Trump for “misleading” the public on Iran. Also, NBC News reports Trump told Sen. John Thune to get him a budget bill to sign by next week. And Trump OMB Director Russell Vought is confronted with a new analysis about children who died of preventable causes after USAID cuts. Rep. Adam Smith, Brendan Duke, and Nick Kristof join Lawrence O’Donnell.

Tonight on The Last Word: Congress expects to be briefed on the U.S. strike on Iran Thursday. Also, Democrats grill Emil Bove in a judicial confirmation hearing. And 16 House Republicans break rank and denounce Medicaid cuts. Sen. Sheldon Whitehouse and Rep. Brendan Boyle join Lawrence O’Donnell.

Tonight on The Last Word: A father of three Marines is beaten and arrested by masked federal agents in California. Also, Democrats demand answers on delayed Iran briefings. Plus, GOP senators are split over Medicaid cuts in the budget bill. And Donald Trump is expected to meet Volodymyr Zelenskyy during the NATO summit. Sen. Adam Schiff, Sen. Amy Klobuchar, and Amb. Michael McFaul join Lawrence O’Donnell.

Tonight on The Last Word: The New York Times reports Iranian state TV is announcing a ceasefire with Israel. Sen. Mark Kelly, Amb. Wendy Sherman, Trita Parsi, and Lt. Gen. Mark Hertling join Lawrence O’Donnell.

Tonight on The Last Word: An appeals court rules that a Trump lawyer must testify in the classified documents case. Also, Stormy Daniels turns over messages from a Trump lawyer to the Manhattan district attorney. And Trump ally Robert Costello tries to undercut Michael Cohen’s New York grand jury testimony. Andrew Weissmann, Neal Katyal, Charles Coleman and Rep. Daniel Goldman join Lawrence O’Donnell.