I fail to see any comparison between Perry's gaff and Obama's.
Obama simply meant he's traveled through states on more than one occassion.
Perry's mistake was a center piece of his supposed economic policy, of which he had no clue.
Big difference.
If I understood it at the time, the celebrated number "57" was the number of contests he was involved in (I guess adding in DC, Guam, Am Samoa, etc...). Still no where near as embarrassing as Perry's latest reverse peristalsis.
That's debatable.
Nah...context.