Ontario imposes a 25% tax increase on electricity exports to the U.S. in response to Donald Trump's trade war. Also, Elon Musk attacks Sen. Mark Kelly's visit to Ukraine. Plus, a federal judge partially blocks Trump from defunding USAID. And The New York Times reports a Justice Department official was fired after opposing restoring Mel Gibson's gun rights. Sen. Amy Klobuchar, Sen. Adam Schiff, and Andrew Weissmann join Lawrence O'Donnell.

The New York Times reports ICE returned all migrants from Guantánamo Bay to stateside facilities. Also, Vladimir Putin attacks Volodymyr Zelenskyy's hometown and still hasn't accepted the U.S.-proposed ceasefire deal. And Republicans remain silent on Donald Trump's antisemitic attack on Sen. Schumer. Rep. Sara Jacobs and Timothy Snyder join Lawrence O'Donnell.