Donald Trump on Sunday launched an attack that, while mentioning polling against Vice President Kamala Harris, was largely about President Joe Biden. Trump, who earlier in the day deleted a post on Truth Social after it was ridiculed for errors, took to his own social media site Sunday to offer his perspective on the current polling. “Polling against Kamala is looking very good,” Trump wrote. In fact, Trump has been falling behind Harris in much of the legitimate political surveys, but it remains a close race, experts say. Want more breaking political news? Click for the latest headlines at Ra…