Sen. Marco Rubio (R-FL) is considered one of former President Donald Trump’s top frontrunners to be chosen as his 2024 running mate. But he could face a serious distraction at next week’s Republican National Convention, where Trump’s selection will be revealed: the appearance of an old friend of his charged with ties to a communist regime. According to the Miami Herald, a federal judge has allowed former Rep. David Rivera (R-FL) to attend the convention in Milwaukee. Rubio and Rivera were close friends in the past, at one point jointly owning a home in Tallahassee, serving in the Florida legis…