The former governor caused a stir by comparing Obama to an abusive spouse and telling America to push for his removal from office. On Thursday, however, O'Reilly and his weekly guest Bernard Goldberg dismissed the idea.
Goldberg called it "crazy" and "beyond terrible," and O'Reilly signaled that he agreed, saying that it would harm Republicans.
"All of President Obama's other problems...would recede," he said. "It would all be about this impeachment."