On the C-SPAN Networks:
Mark Preston is a Correspondent for the Roll Call with 31 videos in the C-SPAN Video Library; the first appearance was a 1999 Call-In. The year with the most videos was 2002 with 13 videos. The year with the highest average number of views per program was 2001 with an average of 30 views per program. Most appearances with Steve Scully (11), Timothy Curran (9), Susan Swain (3). Most common tag: Washington Politics.