During an appearance on HBO’s “Real Time” on Friday night, longtime Democratic strategist James Carville offered some blunt advice to a Republican lawmaker on what the future holds for his party if Donald Trump remains a black cloud over the GOP. During the “Real Time Overtime’ segment posted to YouTube, the folksy and uncensored Carville spoke directly to Rep. Dan Crenshaw (R-TX), an occasional Trump critic, and stated that he better hope the former president loses in a landslide in November because it will benefit the GOP. “If I’m one of you, I want Trump to get beat bad,” Carville began. “I…