Tim Scott has benefited from mentors along the way. He’s hoping for another helping hand

COLUMBIA, S.C. (AP) — When Tim Scott was a teenager, a Chick-fil-A manager named John Moniz offered him a sandwich, a job, and four years of indispensable mentoring about how to be a businessman and a citizen. Later, after that helping hand put Scott on a path that eventually led him into politics, South Carolina Gov. Nikki Haley appointed him to a vacancy in the U.S. Senate.

Now Scott stands on the precipice of perhaps another breathtaking leap, but once again he will need an assist. The...