Like most leftocrats, upon contemplating the unlikely prospect of a Sarah Palin presidential candidacy, your Gleaner's conclusion is "Ooh. Yes, please." Republicans up and down the ballot from coast to coast would suffer. The chances for Democrats to regain control of the U.S. House and/or pick up seats in the Senate (dare we say a filibuster-proof majority?), however wildly remote, are vastly improved with Palin atop the Republican ticket.
The only downside is Palin's steadily diminishing entertainment value.
To be sure, when discussed/mocked by others (mercifully brief video clips used only when absolutely necessary), Palin the curiosity continues to amuse.
But Palin the actual person, babbling "pro-America" inanities from her bus tour or in an "interview" on Fox News, is unwatchable to all but the Palindrones. Palin has acquired an uncanny power, perhaps unmatched in contemporary celebrity, to force average people -- or "real Americans," to borrow a Palinism -- to change the channel within seconds. Media overexposure inevitably renders every major presidential candidate annoying. Palin's prolonged presence on a presidential campaign would transcend mere annoyance, subjecting Americans to something more along the lines of a physiological disturbance -- a continuous wave of nausea, or worse, migraines, if you will, washing over America's collective cultural consciousness.
That's gonna leave a mark.
Come to think of it, for teabagging it in 2010, being forced to endure and disgustedly reject Sarah Palin as a major party presidential nominee is exactly the sort of painful humiliation and shameful disgrace American voters deserve.