Former President Donald Trump has raised speculation he could try to swap out Sen. J.D. Vance (R-OH), plagued as he is by controversy for his comments about childless women, for conspiracy theorist and former independent presidential candidate Robert F. Kennedy Jr. as his running mate — even though there is no clear legal mechanism that would allow him to do so. Speaking to CNN on Tuesday evening, former Trump White House communications chief Alyssa Farah Griffin thinks this is entirely plausible. “[Democratic strategist] Paul Begala was saying, Alyssa, that Trump would get rid of J.D. Vance, …