Over all, [the poll] showed that Republicans who are considering making presidential bids will have to woo a party that largely identifies with the Tea Party movement — more than half of Republican voters said they considered themselves Tea Party supporters — and has questions about President Obama’s origin of birth.
A plurality of Republican voters, 47 percent, said they believed Mr. Obama, who was born in Hawaii, was born in another country; 22 percent said they did not know where he was born, and 32 percent said they believed he was born in the United States.
A historical track of President Obama’s approval and disapproval ratings. Currently, his disapprovals sit at 50 percent, while his approvals are around 45. According to numbers guy Nate Silver: “[E]very incumbent with an approval rating of 49 percent or higher won re-election, while every candidate with a rating of 48 percent or lower lost.”