It's one that promulgated by a lot of people on this site who are not "Obama's people."
“It’s one that promulgated by a lot of people “
A good PR campaign, then, if it can pull in lots of people who repeat it.
DeBeers hired Edward Bernays a while back to bolster diamond sales. He came up with the idea to make a diamond the ONLY stone a man could give a woman when they got married. This public relations campaign is now part of American culture (and for all I know Europe too). DeBeers still spends money on it, but it is maintained individually every time some guy brings The Rock in to the shop to show The Guys, and then the girl shows The Rock to her Gal-Pals. Very few choose a ruby or Tanzanite, a diamond is the vastly socially accepted gemstone for engagements. All fom a public relations/opinion shaping project.
There is a readily available set of “facts” about Obama that is used to support the various birth theories, and lots of people repeat them. Snopes and FactCheck are thankfully coming under increased skepticism.