Former President Donald Trump is planning an event in Pennsylvania with prominent Puerto Rican supporters amid fallout from Puerto Rico being called a “floating island of garbage” at his weekend rally in Madison Square Garden. But Victor Martinez, owner of the La Mega radio station, told MSNBC’s Nicolle Wallace that it’s too late for Trump — he has done irreparable damage. “He never backs down. He never apologizes,” said Wallace. “Are you expecting him to apologize tonight for his political purpose? And do you think people will buy it?” Want more breaking political news? Click for the latest h…