John Cornyn

John Cornyn III is an American politician, attorney, and former jurist serving as the senior United States senator from Texas, a seat he has held since 2002. A member of the Republican Party, he chaired the National Republican Senatorial Committee from 2009 to 2013, and also served as the Senate majority whip for the 114th and 115th Congresses. Wikipedia*
On the C-SPAN Networks:
John Cornyn has 2,358 videos in the C-SPAN Video Library; the first appearance was a 2002 Statement as an Attorney General for Texas. The year with the most videos was 2017 with 210 videos. The year with the highest average number of views per program was 2009 with an average of 9,086 views per program. Most appearances with Mitch McConnell (151), John Thune (118), John A. Barrasso M.D. (108). Most common tags: Republican Party, Washington Politics, Federal Budget.
Majority Whip (Jan 03, 2015 - Jan 03, 2019) Minority Whip (Jan 13, 2013 - Jan 03, 2015) Videos: 2,352
Previously
Attorney General, TexasR January 13, 1999 - December 1, 2002 Videos: 2 U.S. Senate Candidate, Texas
R c. October 16, 2002 - c. November 5, 2002 Videos: 4