Graham shoots down Trump's call for Obama testimony on Russia probe origins

"Just moments after Trump appealed directly to the South Carolina Republican on Twitter, Graham reiterated that he does not intend to call Obama before his committee — and he warned of the precedent such an action would set. “I don’t think now’s the time for me to do that. I don’t know if that’s even possible. I have grave concerns about the role of executive privilege and all kinds of issues,” Graham said in a brief interview. “I understand President Trump’s frustration, but be careful what you wish for. Just be careful what you wish for.”"