The moderator for the final debate is NBC News White House correspondent Kristen Welker.
People are also concerned about bias following this week's two presidential town halls; where ABC News' George Stephanopoulos didn't ask Biden a single question about the allegations about Hunter Biden's overseas dealings and the NBC News town hall where critics allege Samantha Guthrie had a hostile agenda against Trump.
Welker shared a photo on Facebook from the White House Christmas party with the caption: "Christmas at the White House!"
An NBC spokesperson said Welker also attended President Trump's White House Christmas party with her husband in 2017, according to the Washington Examiner.
In March, Welker asked Trump, "Dr. Fauci said earlier this week that the lag in testing was, in fact, a failing.