Vice President Kamala Harris’s interview with Fox News’s chief political anchor, Bret Baier, at 6 p.m. Eastern is, by any measure, a risk for her and a test of her ability to handle a potentially contentious interview in an unfriendly setting. This is the first time that Ms. Harris has sat for an interview on Fox, and it follows a series of interviews that the Democratic presidential candidate has given, including one to “60 Minutes.”

But she is hardly making history here.

A long line of Democrats — presidents and presidential candidates, governors, mayors, senators and members of Congress — have done precisely what Ms. Harris is doing. The atmosphere may be more polarized than ever — and some Democrats might argue that Fox is more fervent in its attacks on their party than ever — but Democrat after Democrat has concluded that there is more to gain than to lose in reaching out to Fox’s audience.