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