Oh, Gehrke!
ABC News' Jake Tapper today ribs DNC Research Dir. Mike Gehrke for cracking wise -- on his Facebook page, of all places -- about John McCain's age.
Gehrke, whose Facebook photo is ...

... lifted a yuck from Jay Leno: "You know what you call someone who digs up dirt on John McCain? An archeologist."
DNC spokeswoman Karen Finney told Tapper that Gehrke "has been reprimanded." Gehrke tells On Call: "From now on all the jokes I steal will be on background."
(JENNIFER SKALKA)







