On Thursday, Joe Biden and Donald Trump will face off in the final debate.
Kristen Welker, a veteran NBC News journalist, will moderate this debate.
Welker will become the second Black woman to moderate a presidential debate solo.
A Philadelphia native, Welker was an intern at "Today" in 1997 and graduated from Harvard College in 1998.
Welker has been a White House correspondent for NBC News since 2011.
