Donald Trump and President Biden hold dueling events at the Texas border as the issue of immigration becomes a top concern for voters. Mitch McConnell says he’s stepping down from Senate leadership after years of enabling Trump. House Republicans' sham impeachment investigation blows up in their faces. RFK Jr. gets a step closer to being on the ballot in Arizona and Georgia. And later, Strict Scrutiny’s Leah Litman stops by to talk about the Supreme Court’s latest gift to Donald Trump in the presidential immunity case.