President Trump also donated to Former Vice President Joe Biden's (D-DE) campaign in 2001, to former Senate Majority Leader Harry Reid's (D-NV) campaign in 1998, and to disgraced former Rep. Anthony Weiner (D-NY).

The pair of remarks led to a new round of speculation that Trump would find a way to fire Mueller. Mr. Comey had previously told the House of Representatives' Intelligence Committee that the FBI was investigating whether the Trump campaign coordinated with Russian Federation during the election. If Trump had business relationships with Russians who could be acting on behalf of Vladimir Putin, that would seem quite relevant.

"If Jeff Sessions is fired", he added, "there will be holy hell to pay".

"I understand how hard and frustrating this investigation is for the president", Collins said.

Republicans and Democrats alike responded with alarm to the latest presidential outbursts.

They are Republican senator Lindsey Graham of SC and Democrats Sheldon Whitehouse of Rhode Island and Richard Blumenthal of CT. "As a human being, I think he should show some respect for Jeff Sessions as a person", he said. Senator Richard Shelby, an Alabama Republican, said, "He's a man of objective and integrity". I faced great pressure because of Russian Federation. If that were to happen, I could envision Trump's early morning tweet: "I told you so".

Collins said she disagrees with the president. "That speaks to character", Schumer said.

The 2008 sale of a Florida mansion has nothing to do with the original mandate of the investigation to look into the supposed collusion between the Trump team and the Russians in 2016 to "hack" that year's election.

Students of the presidency say presidential fits of anger are historically not unusual.

Here's an exotic one: White House advisers told the Post that Mueller once had a dispute with the Trump National Golf Course near Washington over membership fees. The clearest indication that trust is fraying between the Oval Office and Capitol Hill is the fact that Representatives this week passed a tough sanctions bill with proposed measures targeting Moscow, by an overwhelming 419-3 vote.

"This is unprecedented", Mahaffee said. This is unprecedented for special counsels. He said he felt it was unfair for Attorney General Jeff Sessions to recuse himself from the Russian Federation investigation, and that Sessions should have told Mr. Trump if he was going to recuse himself before he accepted the position.

"Firing the Federal Bureau of Investigation director (James Comey), attacking the AG because he recused himself as he was required to do by the rules, openly speculating about prosecuting your political opponent - these are all the types of things that are unsafe warning signs", Miller said. "It raises questions of, whether it's ego or some self-preservation, why Trump is so concerned about this probe by the Justice Department".