Beards are seemingly ubiquitous in pop culture and public life. From sports stars to country singers to Hollywood actors, facial hair has made a noticeable comeback in recent years — except in politics. It’s been more than a century since a sitting president or vice president sported a beard, and nearly 80 years since a candidate for the White House had any facial hair whatsoever. Even in Congress, those with beards remain few and far between. Enter Republican vice presidential nominee JD Vance. The Ohio politician’s full beard is so novel on a presidential ticket that it’s been the subject...