Impeachment again? GOP senator warns what will happen if Joe Biden wins presidency

If Joe Biden wins the presidency in 2020, then he will open himself up to impeachment, Sen. Joni Ernst (R-Iowa) said Sunday.

Ernst told Bloomberg News that Democrats, in pursing a partisan impeachment against President Donald Trump, have opened the door to future cavalier impeachment endeavors.

"I think this door of impeachable whatever has been opened," Ernst said. "Joe Biden should be very careful what he's asking for because, you know, we can have a situation where if it should ever be President Biden, that immediately, people, right the day after he would be elected would be saying, 'Well, we're going to impeach him.'"

Ernst explained that Biden would be impeached "for being assigned to take on Ukrainian corruption yet turning a blind eye to Burisma because his son was on the board making over a million dollars a year."

More from Bloomberg:

President Barack Obama sent Biden to Ukraine on his behalf to fight corruption, including leading the push from the U.S. and western European powers to remove prosecutor general Viktor Shokin from office. When Shokin was fired in 2016, no congressional Republicans expressed concern about the move.

Eventually, though, Shokin began to argue that he was fired because he was investigating Burisma and Biden wanted to protect his son, Hunter, who was on the company's board.

In response to Ernst, Biden campaign communications director Kate Bedingfield did not address Ernst's comments directly, instead urging Iowans to caucus for Biden.

"Iowans have the chance tomorrow to say the words that Donald Trump and Joni Ernst fear most: I'm here to caucus for Joe Biden," she said.