Review your past social-media posts and find out. Oftentimes, it’s not pretty. It would be a shame if your dream job went to someone less qualified, less talented and with less commitment because of a tweet or a Facebook post you made five years ago.

President Donald Trump is not backing off his battle with Elon Musk, saying Saturday that he has no desire to repair their relationship and warning that his former ally and campaign benefactor could face “serious consequences” if he tries to help Democrats in upcoming elections.