The Rasmussen Reports daily Presidential Tracking Poll for Wednesday shows that 22% of the nation's voters Strongly Approve of the way that Barack Obama is performing his role as President. Forty-three percent (43%) Strongly Disapprove giving Obama a Presidential Approval Index rating of -21. That matches the lowest Approval Index rating yet recorded for this President (see trends).

Forty-two percent (42%) of Democrats Strongly Approve while 72% of Republicans Strongly Disapprove. Among those not affiliated with either major political party, 17% Strongly Approve and 45% Strongly Disapprove.

Fifty-seven percent (57%) believe that passage of the proposed health care legislation will hurt the economy. Just 25% believe it will help.

Sixty percent (60%) of parents believe that textbooks used by their students are more concerned about political correctness than accuracy.

Republicans hold a seven-point lead over Democrats on the Generic Congressional Ballot.

The Presidential Approval Index is calculated by subtracting the number who Strongly Disapprove from the number who Strongly Approve. It is updated daily at 9:30 a.m. Eastern (sign up for free daily e-mail update). Updates are also available on Twitter and Facebook.

Overall, 43% of voters say they at least somewhat approve of the President's performance. That, too matches the lowest level yet recorded for this President. Fifty-six percent (56%) disapprove.

The newly selected Republican nominee starts the general election with a ten-point lead in the Illinois Governor’s race. In Massachusetts, an interesting three-way race is developing with incumbent Deval Patrick stuck in the mid-30s. Rasmussen Reports has also released polls on the 2010 governor’s races in Arizona, California, Colorado, Connecticut, Florida, Kansas, Illinois, Massachusetts, Maryland, Michigan, Minnesota, Nebraska, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina Wisconsin, and Texas.

Scott Rasmussen and Doug Schoen have an article in today’s Wall Street Journal explaining “Why Obama Can’t Move the Health Care Numbers.” Scott's new book, In Search of Self-Governance is available from Rasmussen Reports and at Amazon.com. If you'd like Scott to speak at your meeting, retreat, or conference, contact Premiere Speakers Bureau.

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Forty-two percent (42%) favor the President’s health care plan while 53% are opposed. Most believe passage of the plan will increase the cost of health care. Fifty-five percent (55%) say that Congress should scrap the current health care legislation and start over.

See our 2010 Senate polling from Nevada, Colorado, Arkansas, Pennsylvania, California, Indiana, Wisconsin, Washington, Delaware, Florida, Illinois, Kentucky, Louisiana, Maryland, Missouri, New Hampshire, North Dakota, Ohio, Oregon, Connecticut, Illinois, North Carolina and Iowa.

The latest polling data can always be found on the Rasmussen Reports home page, updated with new data at least six times daily.

The New York Times Magazine has a feature on Rahm Emanuel that begins by describing how the White House Chief of Staff reacted to a Rasmussen Reports poll on the Massachusetts Senate race.

Scott Rasmussen has recently had several columns published in the Wall Street Journal addressing how President Obama is losing independent voters , health care reform, the President's approval ratings, and how Obama won the White House by campaigning like Ronald Reagan. You can also learn about his favorite place on earth or his time working with hockey legend Gordie Howe.

It is important to remember that the Rasmussen Reports job approval ratings are based upon a sample of likely voters. Some other firms base their approval ratings on samples of all adults. President Obama's numbers are always several points higher in a poll of adults rather than likely voters. That's because some of the President's most enthusiastic supporters, such as young adults, are less likely to turn out to vote. It is also important to check the details of question wording when comparing approval ratings from different firms.

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Rasmussen Reports has been a pioneer in the use of automated telephone polling techniques, but many other firms still utilize their own operator-assisted technology (see methodology). Pollsters for Presidents Jimmy Carter and Bill Clinton have cited our “unchallenged record for both integrity and accuracy.”

Data from the Washington Post confirms that Rasmussen Reports was well ahead of other media coverage on the Massachusetts Senate race.

In the 2009 New Jersey Governor’s race, automated polls tended to be more accurate than operator-assisted polling techniques. On reviewing the state polling results from 2009, Mickey Kaus offered this assessment, “If you have a choice between Rasmussen and, say, the prestigious N.Y. Times, go with Rasmussen!”

During Election 2008, liberal blogger Nate Silver said that the Rasmussen tracking poll “would probably be the one I'd want with me on a desert island."

In 2008, Obama won 53%-46% and our final poll showed Obama winning 52% to 46%. While we were pleased with the final result, Rasmussen Reports was especially pleased with the stability of our results. On every single day for the last six weeks of the campaign, our daily tracking showed Obama with a stable and solid lead attracting more than 50% of the vote.

An analysis by Pollster.com partner Charles Franklin “found that despite identically sized three-day samples, the Rasmussen daily tracking poll is less variable than Gallup.” During Election 2008, the Rasmussen Reports daily Presidential Tracking Poll was the least volatile of all those tracking the race.

We also have provided a summary of our 2008 state-by-state Presidential results for your review.

In 2004 George W. Bush received 50.7% of the vote while John Kerry earned 48.3%. Rasmussen Reports was the only firm to project both candidates’ totals within half a percentage point by projecting that Bush would win 50.2% to 48.5%. (see our 2004 results).

See also our 2008 state results for Senate and governor. See 2006 results for and governor.

Pollster.com founder Mark Blumenthal noted that “independent analyses from the National Council on Public Polls, the American Association for Public Opinion Research, the Pew Research Center, the Wall Street Journal and FiveThirtyEight.com have all shown that the horse-race numbers produced by automated telephone surveys did at least as well as those from conventional live-interviewer surveys in predicting election outcomes.”

Daily tracking results are collected via telephone surveys of 500 likely voters per night and reported on a three-day rolling average basis. The margin of sampling error—for the full sample of 1,500 Likely Voters--is +/- 3 percentage points with a 95% level of confidence. Results are also compiled on a full-week basis and crosstabs for full-week results are available for Premium Members. Like all polling firms, Rasmussen Reports weights its data to reflect the population at large (see methodology).

Among other targets, Rasmussen Reports weights data by political party affiliation using a dynamic weighting process. While partisan affiliation is generally quite stable over time, there are a fair number of people who waver between allegiance to a particular party or independent status. Since the November 2008 election, the number of Democrats in the country has declined while the number of unaffiliated voters has grown.

Our baseline targets are established based upon separate survey interviews with a sample of adults nationwide completed during the preceding three months (a total of 45,000 interviews) and targets are updated monthly. Currently, the baseline targets for the adult population are 35.3% Democrats, 32.8% Republicans, and 31.9% unaffiliated. Likely voter samples typically show a slightly smaller advantage for the Democrats.

A review of last week’s key polls is posted each Saturday morning. Other stats on Obama are updated daily on the Rasmussen Reports Obama By the Numbers page. We also invite you to review other recent demographic highlights from the tracking polls. To get a sense of longer-term trends, check out our month-by-month review of the President’s numbers.