Congressional Question

Galley Friend X submits the following question. I don’t know congressional politics in granular detail, but maybe there’s an obvious answer:

Honest question: Have white Democrats ever elected a black congressman? That is, has a black D ever been elected from an non-minority-majority district? I can’t think of any. But every black R is, essentially, elected by white people. (And we’re the racists!)

There’s probably an obvious answer to this–maybe a big-city district that isn’t quite minority-majority, but is maybe 35 percent African-American. But like I said, I don’t know off the top of my head.