My Answer to the Challenge

Okay, here's my answer to this challenge [link]. Anybody see any flaws in it?

1960	Pat Brown (Cal.) - George Smathers (Fla.)	Nelson A. Rockefeller (NY.) – Everett Dirksen (Ill.)
1964	Eugene McCarthy (Minn.) – J. William Fulbright (Ark.)	Nelson A. Rockefeller (NY.) – Everett Dirksen (Ill.)
1968	John Connally (Tex.) – James Roosevelt  (Cal.)	Charles H. Percy (Ill.) – William Scranton (Penn.)
1972	John Connally (Tex.) – James Roosevelt  (Cal.)	William Scranton (Penn.) - Gordon A. Allott (Col.)
1976	James Roosevelt  (Cal.) – John Glenn (Oh.)	Phil Crane (Ill.) – Mark Hatfield (Ore.)
1980	John Glenn (Oh.) – Jerry Brown (Cal.)	Phil Crane (Ill.) – Mark Hatfield (Ore.)
1984	John Glenn (Oh.) – Jerry Brown (Cal.)	John Tower (Tex.) – Alexander Haig (Penn.)
1988	Jerry Brown (Cal.) -  Richard Gephardt (Misso.)	Alexander Haig (Penn.) - Donald Rumsfeld (Ill.)
1992	Jerry Brown (Cal.) -  Richard Gephardt (Misso.)	Pat Buchanan (Virg.) – William L. Armstrong (Colo.)
1996	Bob Kerrey (Nebr.) - Bob Casey (Penn.)	Pat Buchanan (Virg.) – William L. Armstrong (Colo.)
2000	Bob Kerrey (Nebr.)   - Bill Bradley (NJer.)	Orrin Hatch (Ut.) - Haley Barbour (Missi.)
2004	Bob Kerrey (Nebr.)   - Bill Bradley (NJer.)	Tommy Thompson (Wisc.) - George Perdue (Geor.)
2008	Bill Bradley (NJer.) - Evan Bayh (Ind.)	Sam Brownback (Kans.) - Mel Martinez (Fla.)
2012	Bill Bradley (NJer.) - Evan Bayh (Ind.)	Fred Thompson (Tenn.) (died in office 2015) - Duncan Hunter (Cal.)
2016	Evan Bayh (Ind.) - John HIckenlooper (Colo.)	Duncan Hunter (Cal.) - Jeff Sessions (Alab.)