WASHINGTON (AP) – President Donald Trump is trading insults with his chief critic from the House intelligence committee’s hearing on a whistleblower complaint about his conduct. Trump tweeted Thursday that committee Chairman Adam Schiff “has zero credibility” and is pushing “Another fantasy to hurt the Republican Party!” Schiff, a Democrat, quickly responded: “I’m always flattered when I’m attacked by someone of the president’s character.” Joseph Maguire, acting director of national intelligence, told the committee a whistleblower “did the right thing” by coming forward to report concerns over the White House’s handling of a call between Trump and Ukraine’s leader. The complaint details a call between Trump and Ukraine’s president in which Trump pressures the leader to investigate political rival Joe Biden.