Powerful. Petty. Politically astute. Are President Trump's Twitter feuds (among the most recent with retiring Republican Senator Bob Corker and the NFL over players kneeling during the national anthem) advancing or hindering his agenda as the clock ticks away on his administration's chance to achieve meaningful legislative victories on key proposals such as tax reform. Hofstra public relations, social media and political science experts are available to discuss the cultural and policy implications of the president's Twitter habits.