Sen. J.D. Vance (R-OH) has a big problem, former Trump administration communications chief Anthony Scaramucci told CNN’s Boris Sanchez Thursday. He is constantly at risk of overshadowing former President Donald Trump himself. And that is a dangerous thing for anyone in Trump’s orbit to do, he warned. This comes amid reporting that Trump is already regretting his choice of Vance, which he made at a moment when he felt that he had already locked up the race and didn’t think he needed a running mate who balanced the ticket pragmatically. Want more breaking political news? Click for the latest hea…