birther

noun

follower of conspiracy theories that assert that Barack Obama is not a natural-born citizen of the United States

Pronunciation: /ˈbɝθɚ/

Etymology: From birth + -er (agent noun suffix) or + -er (“supporter”).

One who gives birth.
“[…] she couldn't be an "easy birther."”
“Liz Buttle, Britain's oldest birther, lied about not taking fertility drugs and didn't conceive her 2-month-old boy in the usual way as she insisted.”
A believer in the conspiracy theory that Barack Obama, 44th president of the United States (2009–2017), is not a natural-born US citizen, and was therefore ineligible for the presidency under the United States Constitution (Article II, Section 1).
“I confess I do have some sympathy for the "birthers," though. As an outsider, it's hard to distinguish between the zany arguments that get official approval by the conservative establishment --- things like Bill Ayers, Michelle Obama's infamous "whitey" tape, the claim that Obama is a closet Marxist --- and those arguments that are considered beyond the pale.”
“Senator Dick Durbin has suggested that the birthers and the health care protesters are one and the same; we don’t know how many of the protesters are birthers, but it wouldn’t be surprising if it’s a substantial fraction.”
More generally, anyone who questions the eligibility of a candidate for office based on their citizenship status.
“[see title]”
“On Thursday, he started floating a new birther lie about Sen. Kamala Harris, who, if elected, would be the first Black and Asian American vice president.”

Etymology: From birth + -er (agent noun suffix) or + -er (“supporter”).

To question the eligibility of a candidate for office or the location of one's birth.