President Obama on Friday revisited the conspiracy theory over his birth certificate and whether he was born in the U.S., calling the issue “crazy stuff.”

Obama brought up his birth certificate during a speech at the National Action Network’s annual conference in New York, as he hammered more stringent voter ID laws that force citizens to provide more documentation before getting access to the ballot box.

“I know where my birth certificate is but a lot of people don’t,” said Obama, prompting laughter from the audience.

“I think its up on a website somewhere,” he added.

“You remember that,” he continued. “That was crazy. Tha was some crazy stuff. … I hadn’t thought about that in a while.”

Obama urged the audience to do more to help Americans vote and slammed Republicans, who he said were using claims of voter fraud to bar access.

A conspiracy theory claimed that Obama was not born in the U.S. and was not constitutionally eligible for the presidency.

The president was born in Hawaii. The White House has released Obama's long-form birth certificate.