The White House (whether its occupant is Obama or Bush) has a tendency to be dismissive of public opinion polls, shrugging them aside as inconsequential to the president’s decision-making and basically to be brushed off like dandruff on a shoulder.

That is unless the polls are going their way.

USA-HEALTHCAREWhite House spokesman Robert Gibbs, amid the glee of the healthcare bill signing Tuesday, tweeted @PressSec “In the polling obsessed town of Washington, DC this will give the nattering nabobs of negativity something to chew on” with a link to a story about the USA Today/Gallup poll that said 49 percent vs. 40 percent saw passage of  the bill as “a good thing.”

But while early post-healthcare polling data show a bump in President Barack Obama’s favorability ratings, it remains to be seen whether there’s a trend in the making.

A CBS News poll based on re-interviewing 649 adults after the Sunday House vote and comparing their responses to before the vote found a 6-point jump to 47 percent of those saying they approve of the job that Obama is doing on healthcare. But there were 48 percent who disapproved, offering a mixed result.

The Rasmussen Reports daily presidential tracking poll showed a 7-point gain from a week ago in the approval index rating on Obama’s performance as president. “The bounce comes entirely from increased enthusiasm among Democrats,” it said.