During Friday’s “Fox & Friends,” Sen. Lindsey Graham (R-S.C.) warns congressional Democrats: Stop your investigations of President Trump, or it’ll cost you in 2020.

Graham noted that “most Americans” think impeaching Trump is “nuts,” but said impeachment is what all Democrats want to run on.

“You cannot be their nominee unless you say Donald Trump needs to be impeached, and that’s why he’s going to win because most Americans think that’s nuts—53 percent want to end the Russian investigation,” Graham stated. “The president’s done a damn good job on the things that matter to you: keeping you safe, increasing your paycheck, and the best is yet to come.”

He continued, “Between what Trump has accomplished for this country and how crazy they’ve become, he’s gonna get re-elected.”

Graham also said the only “cover-up” going on is the “division” in the Democratic Party, which he said members have been “driven over the edge.”

Graham also asserted that he defends President Trump because it is good for the country. “He is really doing a good job. The Democrats are going to get him re-elected,” Graham said.

Graham noted the people who are trying to impeach Trump have “lost their minds.”

Earlier, Graham talked about House Speaker Nancy Pelosi.

“When she [Nancy Pelosi] says the president wants to be impeached. I don’t buy that. When she says her caucus is not divided. I don’t buy that. She’s either delusional or misrepresenting where her caucus really is,” he said.