Who is the third longest serving senator?
Strom Thurmond
Robert Byrd
Robert Byrd
Chuck Grassley
Robert Byrd
Chuck Grassley
Robert Byrd
Chuck Grassley
Joe Biden
Robert Byrd
Chuck Grassley
Joseph Lieberman
Strom Thurmond
Joe Biden
Robert Byrd
Bob Dole
Ted Stevens
Strom Thurmond
Edward M. Kennedy
Bob Dole
Robert Byrd
Tom Daschle
Jim DeMint
Ted Kennedy
Joe Biden
Ted Stevens
Strom Thurmond
Joseph Biden
Jesse Helms
Edward M. Kennedy
Frank Lautenberg
Bob Dole
Barbara Mikulski
Robert Byrd
Ted Kennedy
John Dingell
Tom Daschle
John McCain
Joe Biden
Joseph Lieberman
Ted Stevens
Strom Thurmond
Frank Lautenberg
Bob Dole
Ted Kennedy
John Dingell Jr.
John McCain
John Dingell
Barbara Boxer
Edward M. Kennedy
Tom Daschle
Joe Biden
Jesse Helms
Ted Stevens
Joseph Biden
Robert Byrd
Mike Mansfield
Strom Thurmond
Charles Schumer
Frank Lautenberg
Bob Dole
Ted Kennedy
Joseph Lieberman
John McCain
Harry Reid
John Dingell
Joe Biden
Ted Stevens
Tom Daschle
Robert Byrd
Strom Thurmond
Mike Mansfield
Edward M. Kennedy
Ted Kennedy
Bob Casey
Frank Lautenberg
Charles Schumer
Bob Dole
John McCain
Harry Reid
John Dingell Jr.
John Kerry
John McCain, Jr.
John Dingell
Joe Biden
Ted Stevens
Tom Harkin
Tom Daschle
Strom Thurmond
Joseph Lieberman
Ted Kennedy
Ted Kennedy, Jr.
Robert Byrd
John McCain
Harry Reid
Frank Lautenberg
Charles Schumer
Bob Dole
John Kerry
Richard Lugar
Joe Biden
Ted Stevens
Edward M. Kennedy
Tom Harkin
Tom Coburn
Strom Thurmond
Tom Daschle
Ted Kennedy
John McCain
Harry Reid
Charles Schumer
John Kerry
Bob Dole
Robert Byrd
Joseph Lieberman
Bernie Sanders
Richard Lugar
Joe Biden
John McCain, Jr.
Tom Harkin
Tom Coburn
Hillary Clinton
Ted Kennedy
John Dingell
Bob Casey
John Dingell Jr.
John McCain
Harry Reid
Robert Byrd III
Ted Stevens
Rand Paul
John Kerry
Charles Schumer
Bob Dole
Ted Kennedy, Jr.
Edward M. Kennedy
Robert Byrd
Richard Lugar
Joe Biden
Ted Kennedy
Tom Harkin
John McCain
Harry Reid
John Kerry
Tom Coburn
Charles Schumer
Robert Byrd III
Joseph Lieberman
Bob Casey
Harry Reid, Jr.
Bob Dole
Ted Kennedy
Robert Byrd
Richard Lugar
Joe Biden
John McCain
Harry Reid
Tom Harkin
John Dingell Jr.
John Kerry
Charles Schumer
Bob Casey Jr.
Robert Byrd III
Edward M. Kennedy
Ted Kennedy
John McCain
John McCain, Jr.
Harry Reid
Joe Biden
Robert Byrd
John Kerry
Bob Dole
Joseph Lieberman
Ted Kennedy
John McCain
Harry Reid
Robert Byrd III
John Kerry
Joe Biden
Bob Dole
Robert Byrd
Robert Byrd II
Robert Byrne
J. Edward Kennedy
Ted Kennedy
John McCain
Robert Byrd III
Joe Biden
John McCain, Jr.
Robert Byrd
Edward M. Kennedy III
Ted Kennedy
Robert Byrd II
John McCain
Tom Daschle.
Edward M. Kennedy II
J. Edward Kennedy
Joe Biden
Robert Byrd III
Strom Thurmond.
John Kerry