Unless you have been sharing a pillow up under a rock with Cheri Dennis [no, I love you] you have probably laughed at last week’s Saturday Night Live sketch of the VP debate already.

But from that laughter now comes tragedy.

Some key McCain staffers are content with Palin joking about the “SNL” routines on the campaign trail — as when she scribbled “I’m not Tina Fey” on a supporter’s cell phone and said she’d dressed as Fey on Halloween. But others — including the governor herself — think a return punch on the NBC airwaves is what’s needed.

I’m hearing some sort of Palin tweak of Fey’s American Express commercials is in the works.

While next weekend’s ”Saturday Night Live” will be a rerun, it is possible Palin could appear Thursday on the first of NBC’s ”Weekend Update” specials in prime time. [source]