Mark Knoller is a White House Correspondent for CBS News.
This story was written by CBS News White House correspondent Mark Knoller.
Mark Knoller is an award-winning White House Correspondent for CBS News.
Katie Couric speaks with Mark Knoller - the CBS News Radio White House correspondent who has covered every president since Gerald Ford.
Knoller Feels Readers' Wrath.
CBS News White House Correspondent Mark Knoller has been checking out the White House Booth mailbox.
Mark Knoller gives Katie Couric a tour of the cozy press office he shares with two other CBS News correspondents, Bill Plante and Chip Reid.
The following is a dispatch from CBS News White House Correspondent Mark Knoller.