Julian and Joaquin Castro at the Democratic convention in September. (Streeter Lecka / Getty Images)

— The Castro twins — Joaquin, the Texas congressman, and Julian, the San Antonio mayor — cheering on the Spurs Tuesday night at Penn Quarter Sports Tavern. The brothers, sitting with a few staffer-types, were recognized by a few fans but largely left alone because, hey, the Spurs game was on. Julian Castro was in town for an immigration reform meeting at the White House.

Earlier: Julian Castro’s identical twin brother Joaquin; rising stars have Democrats seeing double, 9/4/13

More Hey, isn’t that . . .? and even more sightings. . . Had a sighting? Share it at reliablesource@washpost.com.

More Reliable Source