Independent presidential candidate Robert F. Kennedy Jr.’s recent appearance on Fox News has riled up former President Donald Trump, leading him to post a lengthy rant attacking his opponent and telling Republicans not to vote for a “radical left lunatic.” Trump took to Truth Social on Wednesday, May 1, telling his 6.9 million followers, “So bad that Fox News puts RFK Jr., considered the dumbest member of the Kennedy Clan, on their fairly conservative platform so much.” “Competitive networks don’t want anything to do with him. He’s a Radical Left Lunatic whose crazy Climate Change views make t…