House Democrats are gearing up to begin investigations into what they believe are the various crimes committed by the Trump administration.

Rep. Jared Huffman, D-Calif., said that if Democrats retake the House in November, they will begin investigating the Trump administration.

"Before we start calling something a crime or making use of these legal terms that actually have very important meanings, we need to investigate," Huffman told the Hill. "We need to do what Congress has declined to do for the last 16 months." 

"We're not going to wait for a new administration. We're going to kick right into oversight and investigation mode. It's urgent," Huffman added. "But it's a long list; we're going to be very busy."

House Minority Leader Hakeem Jeffries, D-N.Y., has warned that the statute of limitations for any crime committed will extend after Trump leaves office in 2029.

"The one thing that should be clear to all these Republican extremists, and sycophants, and the people who are either actively involved in corruption, violating the law, engaged in extrajudicial activity, is that the statute of limitations for any crimes being committed now [is] five years," Jeffries said last year.

Rep. Ted Lieu, D-Calif., said he wants to see acting Attorney General Todd Blanche investigated following the settlement between the IRS and the Justice Department that exempts Trump and his family from investigative audits of his tax returns.

"He's the architect of a fake settlement between the IRS and the Department of Justice, which are really the same entity because everyone reports to Trump," Lieu told the Hill.

"And then he was the architect of this $1.8 billion slush fund and it took public pressure to get Blanche to back off," Lieu added. "Now was that illegal? I don't know. Maybe.

"Someone should look into it, because he was clearly trying to get money that he wasn't authorized to get, and Congress never approved, using a fake settlement," Lieu continued.

Rep. James Walkinshaw, D-Va., wants investigations into work Corey Lewandowski performed while serving as a special government employee at the Department of Homeland Security.

"It's a shocking thing for contractors to have come forward and said he was shaking them down," Walkinshaw told the Hill. "So that's going to need a full investigation. There is an IG [inspector general] investigation right now, but I think that's definitely a starting point."

Democrats said any pardons issued by Trump would not change their plans to investigate the administration and hold officials accountable.

"There will be a test to see if pre-emptive pardons are actually constitutional," Lieu said.