Trump warns FBI
President Donald Trump listens to participants during an event at which he announced a grant for a drug-free communities support program in the Roosevelt Room of the White House in Washington, Aug. 29, 2018. REUTERS/Leah Millis

President Donald Trump, speaking to a raucous, campaign-style rally in Indiana, warned on Thursday that the Justice Department and the FBI must "start doing their job and doing it right" or "I will get involved."

Trump, who has repeatedly criticized the department over its handling of a probe into alleged Russian interference in the 2016 election campaign, suggested its leadership was biased against Republicans and that "people are angry."

"Our Justice Department and our FBI - at the top of each, because inside they have incredible people - but our Justice Department and our FBI have to start doing their job and doing it right and doing it now," Trump said. "I wanted to stay out, but at some point if it doesn't straighten out properly ... I will get involved and I'll get in there if I have to."