Buzz beginning early as Giants prepare for third White House trip

President Obama will host the San Francisco Giants on June 4 for the third time in five years.President Obama poses with Willie Mays and the 2010 Giants in 2011.Programming note: Live coverage of the Giants' trip to the White House will air Thursday morning at 11 a.m. on CSN Bay Area.

WASHINGTON D.C. -- Buster Posey was recovering from a devastating leg injury when the Giants visited the White House in 2011, so the 2013 visit was his first.

As Posey spoke to reporters that day, he flashed a wide smile.

“This is hopefully not a once-in-a-lifetime experience for me,” he said.

Two years later, Posey and the Giants are once again returning to 1600 Pennsylvania Avenue, and the visit, which will air…