He was answering accounts that he is personally being investigated for obstruction of justice with a characteristic scorched-earth defense: Claiming mistreatment of historic proportions and calling into question the probity of his accusers.
In a two-part tweet posted before 7 a.m., Trump wrote: "The MAKE AMERICA GREAT AGAIN agenda is doing very well despite the distraction of the Witch Hunt".
The president did not directly address allegations that he is being probed for possibly obstructing justice - a potentially impeachable offense. "I can go around them", the tweet read. Both Comey and Mueller know each other for 15 years and the former FBI director gave the memos to the latter because he knew Mueller would launch a probe into whether Trump obstructed justice by urging Comey to end investigation into former National Security Advisor Michael Flynn's connections to Russian Federation.
The Washington Post reported Thursday that Jared Kushner's business dealings were also being scrutinized by Mueller's team. Still, the snowballing investigation has deeply angered Trump, who denies he has any nefarious ties to Russian Federation.
The Twitter attacks came as Vice President Mike Pence hired a personal lawyer to represent him in the intensifying investigation.
The White House confirmed that Mueller was among the candidates Trump interviewed to replace Comey. Ditching derogatory rhetoric about the Washington "swamp", he rallied in support of his fellow politicians and called on the country to pull together. Comey has said three times I didn't do anything with the Russians. "The Department of Justice has a long-established policy to neither confirm nor deny such allegations".
Trump's Twitter response followed days of intensifying criticism of Mueller from some conservatives who have charged the former Federal Bureau of Investigation director and his team with political bias and have claimed his relationship to Comey and an earlier meeting with Trump amount to conflicts of interest. Allies have even floated the idea that Mueller may be fired.
Trump advisers describe the president as increasingly angry over the investigation, yelling at television sets carrying coverage and insisting he is the target of a conspiracy. "The FBI leak of information regarding the President is outrageous, inexcusable and illegal", Kasowitz said via a spokesman.
In May, Deputy Attorney General Rod Rosenstein appointed Mueller as special counsel to lead the probe. But Rosenstein, too, may ultimately have to hand off oversight of the probe given his own role in Comey's firing. "Why is that Hillary Clintons family and Dems dealings with Russian Federation are not looked at, but my non-dealings are?" he wrote.
In a second tweet, he continued with "Crooked Hillary destroyed phones with hammer, "bleached" emails, and had husband meet with (Attorney General Loretta Lynch) days before she was cleared and they talk about obstruction?"