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.

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.