Who was the longest-serving senator?
Robert Byrd
Robert Byrd
Robert Byrd
Robert Byrd
Robert Byrd
Strom Thurmond
Robert Byrd
Strom Thurmond
Joe Biden
Robert Byrd
Bob Dole
Strom Thurmond
Joe Biden
Robert Byrd
Tom Daschle
Bob Dole
Strom Thurmond
Jesse Helms
Joe Biden
Robert Byrd
Ted Kennedy
Bob Dole
Strom Thurmond
Tom Daschle
Joe Biden
Ted Kennedy
John Dingell
Robert Byrd
Bob Dole
Strom Thurmond
Tom Daschle
Joe Biden
Edward M. Kennedy
Ted Kennedy
John Dingell
Robert Byrd
Bob Dole
Strom Thurmond
Frank Lautenberg
Tom Harkin
Ted Kennedy
Joe Biden
Tom Daschle
John Dingell
Bob Dole
Edward M. Kennedy
Strom Thurmond
Robert Byrd
Joseph McCarthy
Frank Lautenberg
Ted Kennedy
John Dingell Jr.
Joe Biden
Tom Daschle
John McCain
John Dingell
Tom Harkin
Harry Reid
Bob Dole
Strom Thurmond
Edward M. Kennedy
Joseph McCarthy
Robert Byrd
Frank Lautenberg
Ted Kennedy
Joe Biden
John McCain
Tom Daschle
John Dingell
Harry Reid
Tom Harkin
Joseph McCarthy
Bob Dole
Strom Thurmond
Charles Sumner
Ted Stevens
Edward M. Kennedy
Robert Byrd
Joseph McCarthy, Jr.
Ted Kennedy
Frank Lautenberg
John McCain
Joe Biden
Henry Cabot Lodge
Harry Reid
Richard Nixon
Ted Kennedy, Jr.
Tom Daschle
John Dingell
Tom Harkin
Joseph McCarthy
George McGovern
Charles Schumer
Bob Dole
Henry A. Wallace
Strom Thurmond
John Dingell Jr.
Howard Baker
Ted Kennedy
Robert Byrd
Frank Lautenberg
John McCain
Joe Biden
Harry Reid
Richard Nixon
Charles Sumner
Edward M. Kennedy
Joseph McCarthy
John McCain, Jr.
John Dingell
Tom Harkin
Howard Baker
George McGovern
Robert Byrd III
Charles Schumer
Bob Dole
Ted Kennedy
Strom Thurmond
Robert Byrd
John McCain
Harry Reid
Richard Nixon
Joe Biden
Henry A. Wallace
Joseph McCarthy
Charles Sumner
Howard Baker
Tom Harkin
George McGovern
Charles Schumer
Bob Dole
Strom Thurmond
Robert Byrd III
Robert Byrd II
John McCain
John Dingell Jr.
John Kerry
Joseph McCarthy, Jr.
Ted Kennedy
Robert Byrd
Harry Reid
Richard Nixon
Joseph McCarthy
Joe Biden
Howard Baker
Charles Sumner
Tom Harkin
Ted Kennedy, Jr.
Charles Schumer
Bob Dole
Charles Sumner Wells
Strom Thurmond
Edward M. Kennedy
John McCain
Robert Byrd III
John Kerry
Ted Kennedy
George McGovern
Harry Reid
Richard Nixon
Robert Byrd II
Joseph McCarthy
Robert Byrd
Howard Baker
Joe Biden
Charles Sumner
Bob Dole
Strom Thurmond
John McCain
John Dingell Jr.
Ted Kennedy
Harry Reid
Richard Nixon
Robert Byrd III
Joseph McCarthy
Robert Byrne
Strom Thurmond.
Robert Byrd II
Robert Byrd
John Kerry
Charles Sumner Wells
Charles Sumner
J. Edward Kennedy
John McCain
Bob Dole
Joseph McCarthy, Jr.
Ted Kennedy
Strom Thurmond
Harry Reid
Richard Nixon
Joseph McCarthy
Robert Byrd III
Frank Church
Robert Byrne
Strom Thurmond.
John Dingell
Edward Kennedy
Tom Daschle.
Robert Byrd II
Robert Byrd
John Dingell Jr.