Senate Leadership for the 110th Congress   2007-2009

• President of the Senate - Vice President Dick Cheney
• President Pro-Tempore - Robert Byrd (D-WV)
• Senate Majority Leader - Harry Reid (D-NV)
• Senate Minority Leader - Mitch McConnell (R-KY)
• Assistant Majority Leader & Democrat Whip - Richard Durbin (D-IL). (Chief Democrat vote-counter/enforcer of party-line voting discipline)
• Assistant Minority Leader & Republican Whip - Trent Lott (R-MS). (Chief GOP vote-counter/enforcer of party-line voting discipline)
• Chairman of the Republican Conference - Jon Kyl (R-AZ)
• Secretary, Republican Conference - John Cornyn (R-TX)
• Chairman of the Republican Policy Committee - Kay Bailey Hutchison (R-TX)
• Democrat Conference Chairman - Harry Reid (D-NV)
• Democrat Conference Secretary - Patty Murray (D-WA)
• Chairman of the Democratic Policy Committee - Byron Dorgan (ND)
• Responsibilities of Majority and Minority Leaders
• Senate Organizational Chart
• Senate Rules
• Senate Legislative Process

Officers of the United States Senate

• President of the Senate - Vice President Dick Cheney
• President Pro Tempore - Robert Byrd (D-WV)
• Secretary of the Senate - Emily Reynolds
• Sergeant at Arms - Alfonso Lenhardt
• Secretary for the Majority - David  Schiappa
• Secretary for the Minority - Martin Paone
• Senate Chaplain - Dr. Lloyd J. Ogilvie

Senate Committee Chairmen - 110th Congress  2007-2009

• Agriculture, Nutrition, and Forestry Tom Harkin (IA)
• Appropriations - Robert Byrd (WV)
• Armed Services - Carl Levin (MI)
• Banking, Housing, and Urban Affairs Chris Dodd (CT)
• Budget - Kent Conrad (ND)
• Commerce, Science, and Transportation - Daniel Inouye (HI)
• Energy and Natural Resources - Jeff Bingaman (NM)
• Environment and Public Works - Barbara Boxer (CA)
• Finance - Max Baucus (MT).
• Foreign Relations - Joseph Biden (DE).
• Homeland Security and Governmental Affairs - Joe Lieberman (CT)
• Health, Education, Labor, and Pensions - Ted Kennedy (MA)
• Judiciary - Patrick Leahy (VT)
• Rules and Administration - Dianne Feinstein (CA)
• Small Business and Entrepreneurship - John Kerry (MA)
• Veterans Affairs - Daniel Akaka (HI)

Full list of Senate committee assignments

Special, Select & Other Committees

• Intelligence - John D. Rockefeller (WV)
• Indian Affairs - Byron Dorgan (ND)
• Select Committee on Ethics - Tim Johnson (SD)
• Special Committee on Aging - Herb Kohl (WI)
• Office of Technology Assessment - 
• Bipartisan Commission on the Future of Medicare - 
• U.S. Bipartisan Commission on Comprehensive Health Care - 
• National Commission on Restructuring the Internal Revenue Service -
• Commission on Security and Cooperation in Europe -
• United States Senate Caucus on International Narcotics Control -

Joint Committees

• Joint Committee on Printing - Mark Dayton
• Joint Committee on Taxation - Max Baucus
• Joint Committee on the Library - 
• Joint Economic Committee - Bob Bennett