Donald Trump says he’s innocent in the Russia investigation—so innocent, in fact, that he is vehemently opposed to having Robert Mueller testify about his findings on Capitol Hill. Whining that two years of his presidency have been “stollen” by the special counsel, the president on Sunday reversed course on his suggestion that a decision on Mueller’s testimony should be left up to Attorney General William Barr, tweeting that Democrats are “looking for a redo because they hated seeing the strong NO COLLUSION conclusion.”

“Bob Mueller should not testify,” Trump wrote in a characteristically deranged series of tweets. “No redos for the Dems!”

Why someone who has supposedly been “totally vindicated” by the special counsel would want to keep him from speaking publicly about the probe is a mystery, but the effort to silence Mueller escalates the president’s fight with House Democrats, who say they’re looking to bring the special counsel before Congress this month — possibly as soon as next week, Rep. David Cicilline said Sunday. The testimony, which Cicilline said could take place May 15, would represent the first public comments on the nearly-two-year Russia investigation by the notoriously tight-lipped special counsel.

Despite his claims of “total exoneration,” Trump has good reason to be edgy about public testimony from Mueller. Last week, reports emerged that the special counsel took issue with Barr’s summary of his report, which was largely seen as working in Trump’s favor. “The summary letter the Department sent to Congress and released to the public late in the afternoon of March 24 did not fully capture the context, nature, and substance of this Office’s work and conclusions,” Mueller wrote in a letter to Barr, which the attorney general dismissed as “snitty.” “There is now public confusion about critical aspects of the results of our investigation.”

Democrats are aiming to clear up that confusion, as well as to dig into the discrepancies between Mueller’s findings and how Barr has represented them. Mueller did not establish sufficient evidence of a criminal conspiracy with Russia, but he did detail multiple efforts by the president to subvert the investigation. Barr has characterized those efforts as understandable, the consequence of Trump’s frustration. “That’s not a crime,” Barr told Congress of Trump’s attempt to get Don McGahn to lie to investigators about his order to fire Mueller—something that, if not overtly illegal, at the very least sounds pretty sketchy.

As my colleague Abigail Tracy reported, Barr’s handling of the Mueller report has made him a top target for Democrats seeking to hold Trump accountable, but wary of launching what could be politically-costly impeachment proceedings. With Trump now demanding that Mueller not testify, Barr may once again be put in a position to run cover for the president. But even if Barr, who has previously said he has no issue with the special counsel testifying, does change his tune now that Trump has made his objection clear, his jurisdiction over Mueller will end once the special counsel’s office closes up shop. That means neither the president nor his loyal attorney general may be able to prevent Mueller from appearing on Capitol Hill—a turn of events that could mean bad news for Trump. “For a man who constantly proclaims his innocence,” Chuck Schumer said Sunday, “[Trump] is acting awfully guilty.”

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