Grade the following running mates for the two candidates

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McCain:
Mark Sanford - A
Mike Huckabee - C
Tim Pawlenty - C
Carly Fiornia - F
Tom Ridge - B
John Sununu - C
Mitt Romney - C
Joe Lieberman - F
Tommy Franks - F
Jeb Bush - F
Judd Gregg - C
John Ensign - C
Newt Gingrich - D
Bobby Jindal - F
Colin Powell - B
Fred Thompson - B
Kay Bailey Hutchinson - A
James Jones - ?
John Thune - C
Mike Rounds - C

Obama:
Joe Biden - B
Hillary Clinton - D
Bill Richardson - B
Ray Mabus - B
Kathleen Sebelius - B
Colin Powell - D
Chris Dodd - B
Joe Manchin - D
Sam Nunn - D
Tom Daschle - D
Evan Bayh - B
Tim Kaine - B
Chuck Robb - F
John Kerry - F
Ken Salazar - B
Chuck Hagel - F
Bill Nelson - B
Lee Hamilton - C
Jack Reed - C
John Breaux - B