NBC Photo / Virginia Sherwood
Brian Williams is reporting for a solemn duty.
The NBC Nightly News anchor will be filling in for the late Tim Russert as the host of this Sunday's Meet the Press, a network rep confirms.
"Brian will be hosting this weekend," NBC News spokeswoman Jenny Tartikoff tells E! News, adding that no permanent replacement has been named either as host of Meet the Press or as chief of the news division's D.C. bureau.