Al Gore said he supports a congressional impeachment inquiry into President Trump.

Gore, who was vice president when President Bill Clinton was impeached, said Sunday on ABC’s This Week he believes criminal allegations against Trump are credible and supports House Judiciary Chairman Jerry Nadler's continued investigations into the president.

“My own view is that not seeking accountability for what appear to be credible allegations that crimes were committed — meaningful crimes — runs the risk of normalizing that behavior,” Gore, 71, said.

“I think what is going on now with Chairman Nadler is the right course of action, and that is to gather evidence and begin an inquiry to see what other evidence is available and then make that a decision to go forward when the time comes,” he added.

Following the release of former special counsel Robert Mueller’s report and his testimony before Congress, a majority of House Democrats have said they support an impeachment inquiry. Mueller found no evidence that Trump conspired with Russia during the 2016 presidential election, but did not make a determination on whether he obstructed justice, outlining 10 potential instances of obstruction in his report.