Guests: Andrew Weissmann, Paul Butler, Sen. Peter Welch, John Brennan, Zach Beauchamp

Tonight: another stunning resignation, an ultimatum from Trump's DOJ enforcer, and new reporting on brazen corruption of justice unfolding in public view. Then, as the Vice President picks a fight with European allies, new Republican outrage over "rookie mistakes" on the world stage. And four weeks into the second term the evidence that the Trump power grab can be stopped .

Bipartisan backlash to Donald Trump's attack on an American ally. Tonight: the historic stakes of Donald Trump's support of Vladamir Putin. Plus, Sen. Elizabeth Warren on the world's richest man and his takeover of American government. Sen. Bernie Sanders on his grassroots push to resist the Trump administration. And an exclusive interview with former FTC Chair Lina Kahn.