Thirty-nine percent (39%) of Americans now believe that President Bush should be impeached and removed from office. A Rasmussen Reports national telephone survey found that 49% disagree while 12% are not sure.

Those figures reflect a slight increase in support for impeachment over the past year-and-a-half. In December 2005, 32% believed that President George W. Bush should be impeached and removed from office. Fifty-eight percent (58%) took the opposite view at that time.

A majority of Democrats (56%) now believe the President should be impeached. That’s up from 49% in the earlier survey. Twenty-eight percent (28%) of Democrats remain opposed to impeachment.

Republicans, by an 80% to 16% margin, say that the President should not be impeached. Despite the fact that the President recently alienated his political base over the immigration issue. Republican support for impeachment shows is little changed from the earlier survey.

Among those not affiliated with either major party, 40% now favor impeachment while 45% are opposed. A year-and-a-half ago, 34% of unaffiliated favored impeachment while 55% were opposed.

In another sign that the President has alienated young adults from the Republican Party, Americans under 30 are far more supportive of impeachment than their elders. Among those youngest adults, 56% believe the President should be impeached and removed from office. Thirty-eight percent (38%) disagree. Other surveys show similar trends.

Just 27% of Americans say that the President has done a good or excellent job handling the situation in Iraq; only 21% agree with his decision to commute the prison sentence of Scooter Libby; and, just 15% gave him good or excellent marks on immigration.

During the month of June, the President’s Job Approval fell to the lowest level yet measured by Rasmussen Reports. For the full month, only 35% of Americans said they even Somewhat Approve of the President’s performance. That figure was down from 36% in May and 39% in April. Just 69% of Republicans voice their support. Overall, only 14% of Americans Strongly Approve of his performance. Rasmussen Reports updates the President’s Job Approval on a daily basis.