 Our democracy, he said, although we don't yet know exactly what happened, we should all be relieved that former President Trump wasn't seriously hurt. The Republican Senator J.D. Vance, one of the frontrunners to be Mr. Trump's election running mate, blamed rhetoric stirred up by the Biden campaign for prompting the attack. Mr. Trump's son, Donald Jr., said his father would never stop fighting to save America. Many other world leaders have voiced concern about the shooting.