Ronna Romney McDaniel wants Congress to drop its investigations into whether President Trump colluded with the Russian government during the 2016 presidential election.

Romney McDaniel, the chairwoman of the Republican National Committee, said on "Fox News Sunday" Trump appears to be innocent of that charge and those investigations should end.

"I'm calling for an end to the investigations about ... President Trump's campaign colluding with the Russians," she said. "There's been no evidence of it. I don't think that should continue."

Romney McDaniel said the investigations into Russian interference in the 2016 election should continue, but they need to leave the president out of it.

"Not yet do you have a single senator saying there's definitive evidence of collusion between the Trump campaign and the Russians. That needs to stop," she said.

The RNC chair said Special Counsel Robert Mueller should continue his investigation, but do so quickly. The longer the investigation goes on, the more Trump's name is dragged through the mud unnecessarily, she said.

"That's going to run its course, we'll see what happens. I think it should end quickly. I want them to get to a final conclusion soon," she said.

Trump told reporters Friday he was 100 percent willing to testify in front of Congress under oath about his conversations with former FBI Director James Comey and the Russia investigation.

Romney McDaniel said that's a sign Trump's willing to cooperate as much as possible in any investigation.

"That's going to be up to the president and his legal counsel to determine that," Romney McDaniel said when asked if Trump should testify. "But, what it does signal is the president is going to cooperate 100 percent. He wants this done."