Former president George W. Bush throws out the first pitch prior to Game Four of the World Series between the St. Louis Cardinals and the Texas Rangers. (Rob Carr/Getty Images)

George W. Bush has perfected one role of his post-presidential life: baseball fan.

“The thing I like most about him, he and I used to play baseball trivia — sometimes during meetings, when we weren’t supposed to be doing it,” Commissioner Bud Selig told on Sunday.

The 43rd president, with former first lady Laura Bush at his side, is getting plenty of screen time during the World Series as he cheers on his Texas Rangers from front row seats near the dugout. Bush threw out the first pitch for Sunday’s Game 4: He got a rousing ovation from the Texas crowd as he walked to the mound, then tossed a fastball (wide to the right) to Hall of Fame pitcher and Rangers president Nolan Ryan.

(Whether he’s a good luck charm is another matter: Bush visited the Rangers locker room before Saturday’s Game 3 ; Texas lost 16-7. He dropped by the Cardinals Sunday night; St. Louis lost 4-0.)

Barbara and Jenna Bush Hager watch Game 3 of the World Series on Saturday. (Matt Slocum/Associated Press/AP)

Nothing’s bigger than the World Series, so the Bushes have been front and center for the games hosted by the Rangers — including twins Jenna and Barbara, who came down from New York and were spotted in the stands both Saturday and Sunday.

Video: Bush throws out first pitch