A majority of Americans approve of President Barack Obama's announcement in support of gay marriage.

According to a USA TODAY/Gallup poll released Friday, 51 percent of those surveyed approve of Obama's new stance on the issue, while 45 percent do not.

A greater number of people, however, said the move would make them less likely to vote for the president in the fall. Twenty-six percent of those surveyed said the president's position made them less likely to vote for him, while 13 percent said the shift in position increased the likelihood that they would vote for Obama. Sixty percent said the president's shift would have no bearing on how they vote.

Obama dropped his previous stance of “evolving” on the issue to come out in favor of legalizing marriage for gay couples on Wednesday in an interview with ABC News' Robin Roberts. The next day, the Obama campaign released a video contrasting the president's views with those of his presumed GOP rival, Mitt Romney.

Romney has reiterated his opposition to the institution but added that, “I know other people have differing views.”