Donald Trump doubled down on his smear campaign against Fox News Tuesday when he accused it of reporting fake polls — then shared a lot of screenshots of tweets as apparent proof. Trump took to Truth Social to rage against the conservative cable network, and specifically anchor John Roberts, for reporting polls not to his liking on his campaign against President Joe Biden. “FoxNews will put up Fake Confidential Democrat Polls that were ‘leaked’ to them,” Trump wrote, “but not Rasmussen or any of the REAL polling groups that have me way ahead. What’s up with FOX? I do better with CNN!!!” Want m…