Billy Bob Thornton has a reason for keeping his political opinions to himself. During a recent interview on the Howie Mandel Does Stuff  podcast , the  Landman star and the host chatted about whether celebrities are qualified to use their public platforms to give advice. “What we are experts in, just like the person that’s listening, is being human,” the America’s Got Talent judge said. “So if you could be open and share who you are, how you feel, how you cope, that’s definitely going to do something.” Thorton agreed with Howie Mandel, saying that it’s “way more important than an actor or actress or musician telling people, like you said, who to vote for, because it’s like, I mean, some guy’s on the fence you know and it’s like, well, Dash Rip Rock said it on the Golden Globes, so [that’s who] I’m voting for.” “I don’t know anything about politics ,” the Oscar winner continued. “I have no idea.…