If anything in recent American history bears comparison to the Watergate scandal, it’s this. If anything demands congressional action, it’s this. But congressional action depends on the Republican Party, which holds majorities in both chambers of Congress. And with few exceptions, Republicans are uninterested in challenging Trump’s actions. The GOP has all but abdicated its role as a check on executive power and a defender of constitutional government and seems indifferent to this latest—and most serious—assault on the integrity of our democracy. Which raises an unsettling question: Is there anything Trump could do to spark rebellion from the Republican Party? Any action that breaks the thrall of partisanship?