president trump landing in philadelphia just moments ago for the 120th edition of america's game. the president set to watch army take on navy for the commander in chief's trophy and of course for bragging rights. more on how the most patriotic rivalry is dividing military families this afternoon. >> reporter: we're here in philadelphia for the 120th army navy game and we are here at the tailgate for army west point. but something is askew. because we have paul cowl here wearing a navy jersey because his son plays for the naval academy. you're a brave soul coming to this tailgate. how do you feel about your son representing? >> very proud. they all take the same oath on graduation day.