After Donald Trump was caught on video bragging about sexually assaulting women, Mike Pence stayed on his ticket. As the coronavirus ravaged the U.S., the then-vice president praised the administration’s response. And after a violent mob threatened his life during an attack on the U.S. Capitol, Pence rejected entreaties to invoke the 25th Amendment to remove Trump from office. But after years of being a subservient sidekick, Pence is beginning to distance himself from Trump as he takes increasingly overt steps toward a White House bid of his own. Last month, Pence called out Trump by name, saying his former...