Presidential winner - by party: Democratic Party candidate to win 2012 Presidential Election - 50.9%
Republican Party candidate to win 2012 Presidential Election - 47.8%
http://intrade.net/market/listing/showEvent.faces?e=28883------------------------------------------------------------------------------------------
Democratic Nomination: Barack Obama to be Democratic Presidential Nominee in 2012 - 91.5%
http://intrade.net/market/listing/showEvent.faces?e=29950Barack Obama to face serious primary challenger for 2012 Democratic nomination - 13%
http://intrade.net/market/listing/showEvent.faces?e=33540------------------------------------------------------------
Republican nomination:
I've tried to list everyone who scored 1% or higher: Rick Perry to be Republican Presidential Nominee in 2012 - 35%
Mitt Romney to be Republican Presidential Nominee in 2012 - 30.5%
Jon Huntsman to be Republican Presidential Nominee in 2012 - 7%
Sarah Palin to be Republican Presidential Nominee in 2012 - 6.5%
Michele Bachmann to be Republican Presidential Nominee in 2012 - 6.5%
Ron Paul to be Republican Presidential Nominee in 2012 - 4.6%
Rudy Giuliani to be Republican Presidential Nominee in 2012 - 1.9%
Newt Gingrich to be Republican Presidential Nominee in 2012 - 1.2%
http://intrade.net/market/listing/showEvent.faces?e=29951.