Who is the longest serving senator in history?
Robert Byrd
Robert Byrd
Robert Byrd
Robert Byrd
Robert Byrd
Robert Byrd
Robert Byrd
Robert Byrd
Strom Thurmond
Joe Biden
Bob Dole
Robert Byrd
Strom Thurmond
John McCain
Tom Daschle
Bob Dole
Robert Byrd
Strom Thurmond
John McCain
Joe Biden
William Howard Taft
Tom Daschle
Bob Dole
John McCain
Strom Thurmond
Robert Byrd
Joseph Biden
Ted Kennedy
Bob Dole
Tom Daschle
Joe Biden
John McCain
Strom Thurmond
Robert Byrd
Harry S. Truman
Ted Kennedy
Bob Dole
John McCain
Tom Daschle
Joe Biden
Joseph Biden
Strom Thurmond
John Dingell
Edward M. Kennedy
Robert Byrd
Ted Kennedy
Joseph McCarthy
Harry S. Truman
John McCain
Harry Reid
Bob Dole
Joe Biden
Tom Daschle
Frank Lautenberg
Strom Thurmond
John Dingell
Edward M. Kennedy
Robert Byrd
Ted Kennedy
Joseph McCarthy
Robert Byrd.
John McCain
Harry Reid
Bob Dole
Joe Biden
Frank Lautenberg
Tom Daschle
Strom Thurmond
Ted Kennedy
Joseph McCarthy
John McCain, Jr.
Robert Byrd
Joseph McCarthy, Jr.
John Dingell
John McCain
Harry Reid
Tom Harkin
Edward M. Kennedy
Charles Sumner
Bob Dole
Joe Biden
John Dingell Jr.
Frank Lautenberg
Strom Thurmond
Tom Daschle
Ted Kennedy
Joseph McCarthy
William H. Seward
Robert Byrd.
John McCain
Harry Reid
Robert Byrd
John Dingell
Henry Cabot Lodge
Charles Schumer
Charles Sumner
Bob Dole
Tom Harkin
John Kerry
Ted Kennedy, Jr.
Joe Biden
Robert Byrd III
Ted Kennedy
Joseph McCarthy
Strom Thurmond
Tom Daschle
John McCain
Harry Reid
Edward M. Kennedy
John Dingell
Robert Byrd II
Robert Byrd
William Henry Harrison
Richard Nixon
Charles Schumer
George McGovern
Charles Sumner
Bob Dole
Tom Harkin
Ted Kennedy
Joseph McCarthy
Joe Biden
Strom Thurmond
Robert Byrd III
Robert Byrd.
John McCain, Jr.
John McCain
Harry Reid
John Kerry
Joseph McCarthy, Jr.
John Dingell Jr.
Richard Nixon
Charles Sumner Wells
Robert Byrd
Howard Baker
George McGovern
Charles Sumner
Edward M. Kennedy
Ted Kennedy
Joseph McCarthy
Bob Dole
Joe Biden
Charles Schumer
John McCain
Harry Reid
Strom Thurmond
John Kerry
William Henry Harrison
Tom Harkin
Robert Byrd III
Richard Nixon
Robert Byrd.
Robert Byrd II
Tom Daschle.
Charles Sumner Wells
Robert Byrd
Joseph McCarthy
Charles Sumner
William Henry Seward
Bob Dole
Joe Biden
John McCain
Harry Reid
John Kerry
Strom Thurmond
Ted Kennedy
Tom Harkin
Richard Nixon
Robert Byrd III
Edward M. Kennedy
Robert Byrd,
William Henry Harrison
Robert Byrd II
Joseph McCarthy
Robert Byrd
Charles Sumner
William Henry Osborn
Strom Thurmond.
Robert Byrd.
Bob Dole
John McCain
Harry Reid
Charles Sumner Wells
John Kerry
Joe Biden
Ted Kennedy
Strom Thurmond
Henry A. Wallace
William Henry Seward
Robert Byrd III
Joseph McCarthy
Robert Byrd,
John Dingell Jr.
Edward Kennedy
Edward M. Kennedy
Robert Byrd II
John McCain
Harry Reid
Robert Byrd
Bob Dole
Ted Kennedy