WATCH: Trump rants against ‘sad’ FBI and praises Putin after reporters ambush him at White House

President Donald Trump delivered an angry rant on the White House lawn in front of reporters on Friday in which he ranted about both the Department of Justice and the FBI.

When reporters stopped Trump on the White House lawn Friday morning to ask him questions, the president angrily ranted about the FBI in the wake of text messages that revealed an FBI agent who was part of Robert Mueller's investigation called Trump an "idiot."

"You have a lot of angry people," Trump said of the FBI. "It's a very sad thing to watch, I will tell you that. I am going today on behalf of the FBI, their new building, and when everybody -- not me, everybody, the level of anger, and what they have been witnessing with respect to the FBI, it's certainly very sad."

The president then fumed about accusations that his campaign colluded with Russian intelligence officials during the 2016 presidential election.

"There's been no collusion, that has been proven," the president falsely asserted, as there has not been any definitive proof that Trump's campaign did not collude with Russia yet. "The Senate and the House, my worst enemies, they walk out and say, 'There is no collusion but we will continue to look.' They are spending millions and millions of dollars and there's absolutely no collusion."

While Trump had angry words to say about the FBI and members of Congress, he did have warm words for Russian President Vladimir Putin.

"The call with Vladimir Putin, it was great," Trump said. "He said very nice things about what I have done for the country in terms of the economy, and he said also some negative things in terms elsewhere, but the primary point was to talk about North Korea, because we would love to have his help on North Korea."

Finally, Trump said that he was still not sure about whether he would issue a pardon for disgraced former National Security Adviser Michael Flynn, who recently pled guilty to lying to the FBI.

"I don't want to talk about pardons for Michael Flynn yet," he said. "We will see what happens."