President Trump sends White House aides to punish reporters if they're not deferential enough.<br />Business Insider reports his aides have resisted those requests until this week.<br />That's when CNN reporter Kaitlan Collins was barred because of questions she asked.<br />Reporters who shout or who press him with questions tend to get the president most riled up.<br />The President has called the free press "the enemy of the American people" via Twitter. <br />