Several new polls looking forward to this fall’s presidential election show Sen. Barack Obama to have a solid edge over Sen. John McCain among young voters and voters with a college education.

The results of a poll of about 1,500 registered voters by the Center for Opinion Research at Franklin & Marshall College show that Mr. Obama leads Mr. McCain among all voters, 42 percent to 36 percent. Among voters under the age of 35, however, Mr. Obama leads Mr. McCain by 55 percent to 28 percent. And among voters with a college degree, Mr. Obama leads Mr. McCain 48 percent to 35 percent.

Similarly, a Los Angeles Times/Bloomberg poll of about 1,200 adults found that Senator Obama leads Senator McCain by 48 percent to 33 percent among all registered voters, but 59 percent to 24 percent among registered voters under the age of 36. That poll also showed Mr. Obama to have stronger support among registered voters with college degrees than those without.

A Newsweek poll found Senator Obama to be leading Senator McCain among all registered voters by 51 percent to 36 percent, and among voters under the age of 40 by 66 percent to 27 percent. A Time magazine poll of likely voters found Mr. Obama to be ahead 43 percent to 38 percent overall and 53 percent to 42 percent among respondents under the age of 35.