Senate Committee on Commerce, Science, and Transportation

http://commerce.senate.gov/

Chairman:
Sen. John Thune [R-SD]
Ranking Member:
Sen. Bill Nelson [D-FL]
Republicans:
13
Democrats:
11

The chairman is always selected from the majority party and the ranking member is the most senior member of the minority party. The majority party ensures it has a majority on every committee.

Chairman
John Thune
South Dakota
Republican
Ranking Member
Bill Nelson
Florida
Democrat
Aviation ...
Kelly Ayotte
New Hampshire
Republican
Space, ...
Ted Cruz
Texas
Republican
Surface ...
Deb Fischer
Consumer ...
Jerry Moran
Kansas
Republican
Oceans, ...
Marco Rubio
Florida
Republican
Communications, ...
Roger Wicker
Mississippi
Republican
Richard Blumenthal
Connecticut
Democrat
Roy Blunt
Missouri
Republican
Cory Booker
New Jersey
Democrat
Maria Cantwell
Washington
Democrat
Steve Daines
Montana
Republican
Cory Gardner
Colorado
Republican
Dean Heller
Nevada
Republican
Ron Johnson
Wisconsin
Republican
Amy Klobuchar
Minnesota
Democrat
Joe Manchin III
West Virginia
Democrat
Edward “Ed” Markey
Massachusetts
Democrat
Claire McCaskill
Missouri
Democrat
Gary Peters
Michigan
Democrat
Brian Schatz
Hawaii
Democrat
Dan Sullivan
Alaska
Republican
Tom Udall
New Mexico
Democrat

There are 287 bills referred to this committee. Below find the top 100: