The Fox Nation headline, “Soldier Who Challenged Obama's Citizenship Fired From Job,” links to a July 15 WorldNetDaily article which includes the following promotions for WND's “Where's the [Obama] birth certificate?” campaign:

"Join the petition campaign to make President Obama reveal his long-form, hospital-generated birth certificate!"

"Want to turn up the pressure to learn the facts? Get your signs and postcards asking for the president's birth certificate documentation here."

"Send a contribution to support the national billboard campaign that asks a simple question: “Where's the birth certificate?”"

In addition to advancing the birth certificate conspiracy theory, the Fox Nation-promoted article also raises claims that Obama was born in Kenya.

Media Matters for America has documented Fox Nation's obsession with Obama's birth certificate.

FactCheck.org: Born in the U.S.A.: The truth about Obama's birth certificate.