The tweets followed an Axios report published late Saturday night claiming that former FBI Director Andrew McCabe - who was fired by Attorney General Jeff Sessions on Friday and was stripped of his pension benefits - had met with Mueller, who asked him about Trump's firing of Comey nearly a year earlier, and also turned over "contemporaneous" memos that he'd taken detailing his conversations with the president.

According to Axios, the memos contained a corroborating account of Comey's firing.

Trump claimed that Comey lied during public Senate testimony last Spring, when he said he'd never been an anonymous source for the news media - then admitted that he had "authorized" a friend to leak one of his memos to the New York Times, which Comey said he did in hopes of sparking a special counsel investigation.

In this particular case, Trump may be referencing what se discussed last night, namely that McCabe may himself have jeopardized Comey, a point underscored by constitutional law professor Jonathan Turley on CNN, who suggested that McCabe's statement following his firing "immediately" raised a flag, which may lead to serious consequences for his former boss. McCabe's statement reads in part:

The OIG investigation has focused on information I chose to share with a reporter through my public affairs officer and a legal counselor. As Deputy Director, I was one of only a few people who had the authority to do that. It was not a secret, it took place over several days, and others, including the Director, were aware of the interaction with the reporter.