Donald Trump. Pool/Getty Images

As he has done time and time again since announcing his presidential bid in mid-2015, President Donald Trump spent the hours after a major controversy blasting his opponents on social media.

On Tuesday and Wednesday, Trump responded from his Twitter account to criticism of his bombshell firing of FBI Director James Comey by hammering away at Democrats such as Sens. Chuck Schumer of New York and Richard Blumenthal of Connecticut.

"Cryin' Chuck Schumer stated recently, 'I do not have confidence in him (James Comey) any longer,'" Trump said in his first tweet after the firing, pointing to a comment Schumer made in 2016. "Then acts so indignant. #draintheswamp."

Democrats were quick to invoke former President Richard Nixon, the Watergate scandal, and the infamous "Saturday Night Massacre," when Nixon fired the independent special prosecutor investigating the scandal.

Trump attributed Comey's ouster to his handling of the investigation into Hillary Clinton's use of a private email server. But Comey was also investigating whether Trump's campaign colluded with Russian officials to help influence the US election.

In his letter to Comey, Trump said Comey had informed him "on three separate occasions" that he was "not under investigation." Comey has not confirmed that claim publicly.

Schumer, the Senate minority leader, told Trump on a phone call that firing the FBI director who was leading an investigation related to Trump was a "big mistake." Schumer later held a press conference slamming Trump for his decision.

Trump saved most of his fire for Blumenthal.

On Wednesday morning, Trump, repeating an attack on Blumenthal made earlier in his presidency, tweeted about Blumenthal's misrepresentation of his war record during his 2010 campaign.

Trump said Blumenthal should be investigated instead of himself.

He posted in a series of three tweets: "Watching Senator Richard Blumenthal speak of Comey is a joke. 'Richie' devised one of the greatest military frauds in US history. For....years, as a pol in Connecticut, Blumenthal would talk of his great bravery and conquests in Vietnam — except he was never there. When....caught, he cried like a baby and begged for forgiveness...and now he is judge & jury. He should be the one who is investigated for his acts."

Sens. Chuck Schumer and Richard Blumenthal. Yuri Gripas/Reuters

During his 2010 run, Blumenthal had to hold a press conference after he repeatedly said he served in the Vietnam War, even though he did not, according to Politico. Blumenthal clarified that he meant to say he served "during" the war, as he was a member of the Marine Corps Reserves for six years but did not serve overseas.

Trump was given five deferments from the draft, including one because of a diagnosis of bone spurs in his heels.

Blumenthal, who sits on the Senate Judiciary Committee, held nothing back in his disdain for Trump's firing of Comey, lambasting the decision in a statement before making the rounds on TV.

He said it "catastrophically compromised the FBI's ongoing investigation of his own White House's ties to Russia."

"Not since Watergate have our legal systems been so threatened and our faith in the independence and integrity of those systems so shaken," he said in a statement. "The only way to restore faith in a nonpolitical, nonpartisan FBI is to appoint an independent special prosecutor."

Trump also broadened his attacks to all Democrats.

"The Democrats have said some of the worst things about James Comey, including the fact that he should be fired, but now they play so sad!" he tweeted.

He said that "when things calm down" Republicans and Democrats "will be thanking me!"