evidence: Welker has not donated thousands of dollars to Democratic candidates, registered as a Democrat or "spent Christmas" at the White House with President Barack Obama, despite what an Oct. 17 Facebook post claims. "Kristen Welker, of NBC, the next debate moderator chosen by the ‘unbiased’ presidential commission, gave thousands of dollars to Obama, Clinton and Biden, is registered as a Democrat (and) her family spent Christmas with the Obamas at the White House," the post, featuring photos of Welker and her family, says. "Her mother is an activist for Biden!" [...] The Facebook post’s claim that Welker and her family "spent Christmas with the Obamas at the White House" is also inaccurate, as scores of journalists and pundits pointed out on Twitter.