Donald Trump made history on Thursday when he was convicted of more than 30 felonies in New York. He then immediately went on a fundraising spree in which he cast himself as a victim of a rigged system. But putting his own fundraisers out after the guilty verdict wasn’t enough, according to a new report. He’s now warning fellow Republicans to keep away, Politico reported. “Donald Trump’s campaign is sending a blunt message to down ballot Republicans who are looking to fundraise for themselves off of the ex-president’s conviction: Back off,” the outlet reported. “Trump’s political operation vie…