Influential Republicans are setting their sights on toppling the Obama administration as evidence of a cover-up over the assault on the Benghazi consulate gets stronger.

Former Arkansas Gov. Mike Huckabee is now openly talking about impeachment, saying he does not believe Barack Obama will survive the remaining 3½ years of his presidency.

“When a president lies to the American people and is part of a cover-up, he cannot continue to govern,” Huckabee said on his radio show Monday.

“As the facts come out, I think we’re going to see something startling. And before it’s over, I don’t think this president will finish his term unless somehow they can delay it in Congress past the next 3½ years.”

Huckabee isn’t alone in his belief that Obama could be toppled. The pressure is growing just as Congressional hearings on the Sept. 11, 2012 attacks that left four Americans dead are due to start on Wednesday.

Rep. Darrell Issa of California, who will chair those hearings as chairman of the House Oversight Committee, said he intends to make the president “come clean.”