President Obama on Wednesday released copies of his two-page, long-form birth certificate showing he was born on Aug. 4, 1961, at Kapiolani Hospital in Honolulu.

As Durbin suggested, some are not convinced.

"[We're] going to look at it,” billionaire media mogul and possible GOP presidential candidate Donald TrumpDonald John TrumpIvanka Trump pens op-ed on kindergartners learning tech Bharara, Yates tamp down expectations Mueller will bring criminal charges Overnight Cybersecurity: Equifax security employee left after breach | Lawmakers float bill to reform warrantless surveillance | Intel leaders keeping collusion probe open MORE said of the birth certificate. “We have to see if it's real, if it's proper.”

Joseph Farrah, editor in chief of the conserative website World Net Daily, also said on MSNBC on Wednesday he remained unconvinced that President Obama was born in the U.S. and therefore eligible to serve in the White House.