Fifty-one percent (51%) of U.S. voters say President Obama is a good or excellent leader. While still positive, that number is down from 55% last month and is the lowest level found since he took office in January.

The latest Rasmussen Reports national telephone survey shows that 27% of voters now see him as a poor leader, up three points from May and also the highest percentage of disapproval since his inauguration.

It's still to early to say whether Obama's leadership numbers this month are a statistical blip or the beginning of a trend.

Today’s results in the Daily Presidential Tracking poll show the president receiving the highest level of strong disapproval and the lowest overall rating recorded since he took office.

(Want a free daily e-mail update? If it's in the news, it's in our polls). Rasmussen Reports updates also available on Twitter.

While 58% of Democrats see Obama as an excellent leader, 47% of Republicans rate his leadership as poor. Forty-three percent (43%) of voters not affiliated with either part give the president good or excellent marks.

The same survey also shows that nearly a third of voters (32%) see Obama’s leadership style as being too cooperative. That’s down slightly from May. The plurality (48%) says his leadership style is about right. Only 13% think Obama is too confrontational.

Interestingly, the plurality of Republicans (45%) thinks Obama’s leadership style is too cooperative, a result that has remained steady over the past month. Three-out-of-four Democrats (75%) see his leadership style as about right, a view shared by the plurality (42%) of unaffiliated voters.

Just prior to the president’s speech in Cairo, Egypt aimed at mending relations between the Muslim world and the United States, only 28% of voters said that relationship will be better a year from now.

Back at home, public support for the president’s first Supreme Court nominee, Sonia Sotomayor, has softened a bit this week, but 88% still say it is likely she will be confirmed.

On the economic front, new Rasmussen polling shows that 26% of Americans support the government’s decision to take ownership of General Motors, but 53% say it was a bad idea. Seventeen percent (17%) favor boycotting the automaker.

Please sign up for the Rasmussen Reports daily e-mail update (it’s free) or follow us on Twitter. Let us keep you up to date with the latest public opinion news.

See survey questions and toplines. Crosstabs are available to Premium Members only.