President Donald Trump mocked his Republican challengers for the GOP nomination for president, whom he has dubbed the “Three Stooges.”

While he did not mention any of his challengers by name, he gave each a nickname in a Twitter post Tuesday. “Can you believe it? I’m at 94% approval in the Republican Party, and have Three Stooges running against me,” he said.

“Mr. Appalachian trail man” refers to former Gov. Mark Sanford (R-South Carolina), who ended his term early because of an affair. His office had said he was “hiking the Appalachian trail” when he was actually in Argentina with a women.

While Sanford has not officially entered the race against Trump, he has shown he is not a Trump supporter. 

A second part of the tweet read, “Another is a one-time BAD Congressman from Illinois who lost in his second term by a landslide, then failed in radio. The third is a man who couldn’t stand up straight while receiving an award. I should be able to take them!”

The “BAD Congressman from Illinois” is referring to former Rep. Joe Walsh (R-Illinois), who recently announced he will challenged the president.

The “man who couldn’t stand up straight,” is former Gov. Bill Weld (R-Massachusetts), who was the first to challenge Trump.

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