Poll finds percentage of "birthers" is down

In the wake of President Obama's release of his long-form birth certificate, the percentage of Americans who doubt that President Obama was born in the United States has dropped dramatically, according to a new Washington Post poll.

The poll finds that 77 percent of Americans say Mr. Obama was born in the United States, up from 68 percent one year ago. Eighty-six percent say it is at least their best guess he was born in the United States.

The percentage of those who say Mr. Obama was likely born abroad has fallen from 20 percent in a Post-ABC poll one year ago to 10 percent in the new poll; only one percent of respondents say they have "solid evidence" to support that belief. Even before the long-form birth certificate was released, there was overwhelming evidence that Mr. Obama was indeed born in the United States.

A CBS News/New York Times survey taken in mid-April, before the release of the long-form birth certificate, found that one in four Americans - including nearly half of Republicans - wrongly believed Mr. Obama was born outside the United States.

The new poll was taken from April 28 - May 1.