President Joe Biden has gotten into his first dustup with the media since taking office. It happened Thursday in the White House when the AP’s Zeke Miller pressed Biden about one of the signature promises of his first 100 days — the pledge that 100 million doses of the coronavirus vaccine will be administered in that time. “You set the goal at 100 million vaccines in the first 100 days — is that high enough?” Miller asked. “Shouldn’t we set the bar higher? That’s basically where the U.S. is right now.” Biden bristled at the question and sniped at Miller...