The spike in President Obama's Gallup approval ratings seems to have disappeared.   As health care reform moved toward its denouement, the President's approval briefly moved upward, from an upside-down 46%-48% in the March 15-17 sample, to a 50%-43% rating on the eve of the vote.  It went as high as 51%-43% during the previous week.  In today's report, however, the President splits 46%-46% in the poll of adults, tying the lowest approval rating of his Administration.

There are two possible interpretations at this point, and I have no means to settle the dispute right now.  First, it may simply be the case that there was an unusually unfavorable sample taken on the 26th; if this is the case, we should see the President's approval rise in Tuesday's report (notably, we see similar movement in the recent Rasmussen tracking polls).  On the other hand, it may be that in a Feiler-Faster world, the people processed the health care news quickly and then promptly forgot about it, reverting to their pre-signing impressions of Obama.

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