Business giant Mark Cuban faced off with one of Donald Trump’s top defenders in the media on Friday. It all started when Cuban reportedly “slammed fellow billionaire Elon Musk and other business figures who have recently signaled support for former President Trump’s campaign in a social media post.” Fox News weekend host Mark R. Levin, who was recently mocked online for lamenting a lack of billionaires offering to help Trump post bond in his case, is frequently promoted by Trump on the ex-president’s social network, dubbed “Truth Social.” Levin noted the report about Cuban, and shared it on so…