Washington (CNN) - The Republican Party is split right down the middle between tea party movement supporters and those who do not support the two-and-a-half-year-old movement, according to a new national survey.
And a CNN/ORC International Poll released Thursday also highlights the differences in demographics, ideology, and temperament between the two camps. According to the survey, on some issues, the two wings of the GOP are in accord, but tea party activists and supporters do not speak for the entire Republican Party on issues such as the deficit, global warming, evolution, abortion, gay marriage, the Federal Reserve, the Department of Education, or Social Security.
Full results (pdf)
"Demographically, the tea party movement seems to hearken back to the 'angry white men' who were credited with the GOP's upset victory in the 1994 midterm elections," says CNN Polling Director Keating Holland. "Ideologically, it effectively boils down to the century-old contest between the conservative and moderate wings of the party."
According to the survey, roughly half (49 percent) of Republicans and independents who lean towards the GOP say they support the tea party movement or are active members, with roughly half (51 percent) saying that they have no feelings one way or another about the tea party or that they oppose the movement.
The poll indicates that demographically, tea party Republicans are more likely to be male, older, and college educated, with non-tea party Republicans more likely to be younger, less educated, female, and less likely to say they are born-again or evangelical. Both groups are predominantly white.
Nearly eight in ten tea party Republicans describe themselves as conservatives, with nearly half of non-tea party Republicans call themselves moderate, or in a few cases, liberal. But the differences are also a matter of temperament: 50 percent of tea party Republicans say they are "very angry" about the way things are going in the country today, compared to just 29 percent of their Republican counterparts.
How does all of that affect their views on the issues of the day?
"One of the biggest differences is on the relative importance of jobs versus the federal deficit. Most tea party Republicans say that Congress and President Barack Obama should pay more attention to the deficit," says Holland. "Most non-tea party Republicans say that reducing unemployment is more important than reducing the deficit."
But the "science" issue is also a strong divider. Nearly six in ten tea party Republicans say that global warming is not a proven fact. Most non-tea party Republicans disagree. Six in ten tea party Republicans say that evolution is wrong. Non-tea party Republicans are split on evolution. Six in ten tea party Republicans say the Department of Education should be abolished, but only one in five of their GOP counterparts holds that same view.
There is also disagreement on social issues: Tea party Republicans are roughly twice as likely to say that abortion should be illegal in all circumstances and roughly half as likely to support gay marriage. Tea party Republicans are also roughly twice as likely to believe that the Social Security system should be replaced, and although most Republicans on either side disagree with the assertion that Social Security is a lie and a failure, tea party GOPers are much more likely to embrace that view.
What will happen to the GOP next year if tea party Republicans don't get their way?
"Nearly half of them say that they are not very likely to support an independent presidential candidate next year - possibly because removing Obama from power is their overwhelming motivation, and they may recognize that bolting the party would ensure his re-election," says Holland.
Eight in ten tea party Republicans say that they would prefer a candidate who can beat Obama over one who agrees with them on top issues, so ideological purity may take a back seat to pragmatic politics in 2012 even if the GOP nominee is not a tea party favorite.
Non-tea party Republicans are somewhat more likely to consider voting for a third-party candidate, and place somewhat less emphasis on beating Obama.
"So it's possible that a bolt from the GOP may come from the moderates rather than the tea party activists and supporters. But there is no way to predict how people will react to inherently unpredictable events, so anything can happen," adds Holland.
The poll was conducted for CNN by ORC International September 9-11, with 446 Republicans and independents who lean towards the GOP questioned by telephone. The survey's overall sampling error is plus or minus 4.5 percentage points.
–CNN Deputy Political Director Paul Steinhauser contributed to this report.