Trump vented his anger on Monday at the Mueller inquiry and vowed investigations into unnamed political enemies who did "very, very evil" and "treasonous things".
Meanwhile, Senate Majority Leader Mitch McConnell blocked a vote on a nonbinding resolution to release the special counsel's full report, although President Trump declared it "wouldn't bother [him] at all" if the report was made public.
Numerous charges against the Trump associates were related to lying to Congress or federal investigators.
A person familiar with the matter said there were no plans at this time to show the Mueller report to the White House. Barr quoted Mueller's report as saying, "While this report does not conclude that the president committed a crime, it also does not exonerate him".
Pentagon Authorizes $1 Billion For New Border Wall Along The Southern Border
Building the wall was a major promise of Mr Trump's presidential election campaign, but he has met opposition to the plan from Congress.
House Democrats are pressing the Justice Department to release Mueller's full report even as Republicans called for them to "move on" from the Russian Federation investigation. Rather than release the report, Attorney General Barr delivered a letter to Congress summarizing his conclusions.
The challenges for Democrats come as Trump has made clear he's fired up to go on offense against those who propelled the narrative that he colluded with Russian Federation to win the 2016 election.
Graham said if investigators "used the law for political purposes" and tried to take down Trump after the election, "it's bigger than Watergate". "I've been looking at them for a long time", Mr Trump said in the Oval Office sitting alongside visiting Israeli Prime Minister Benjamin Netanyahu.
White House spokeswoman Sarah Sanders called for congressional hearings to investigate prominent Trump critics including former USA director of national intelligence James Clapper, former CIA director John Brennan, former Federal Bureau of Investigation director James Comey and other Federal Bureau of Investigation figures. But the probe left unresolved the question of whether Trump engaged in obstruction of justice. Still, he said the investigation was legitimate and had to happen in order to answer questions about Russian interference in the 2016 election.
Xiaomi reveals 100-watt charging and it destroys the next best solution
Now, another Chinese player, Xiaomi , wants to topple all of them with the fastest wired charging on any smartphone. To show its superiority, the 100W charger running at 20V/5A is pit against OPPO's 50W solution.
"The Mainstream Media is under fire and being scorned all over the World", President Donald Trump tweeted Tuesday morning.
Trump also said he had not thought about pardoning anyone convicted or who pleaded guilty in the Mueller probe.
Failing to release the report would provide fuel for critics who suggest that Barr's summary is part of a larger cover-up. Barr's letter states that Mueller's report "does not draw a conclusion-one way or the other-as to whether the examined conduct constituted obstruction".
At the Capitol around midday, Trump implied that senior Obama White House officials were involved in what he has described as "illegal" actions that led to the Mueller investigation.
As politicians seize Brexit process, Theresa May fights for control
However, the Labour leader still remains reluctant to openly support a second referendum. Amid the chaos, it was unclear when May would bring her divorce deal back to Parliament.