A new Associated Press-Yahoo News poll finds one in five use "change" or "outsider" to describe Obama and "old" to describe McCain.

Here's the top ten descriptions of both candidates:

John McCain:

1. Old, 19 percent

2. Military service, 9 percent

3. Record, qualifications, 8 percent

4. Bush, 7 percent

5. Strength, 7 percent

6. Insider, politician, 7 percent

7. Iraq, terrorism, 6 percent

8. Honest, 5 percent

9. Republican, 5 percent

10. (tie) Moral/good and dishonest, 4 percent

Barack Obama:

1. Outsider, change, 20 percent

2. Lack of experience, 13 percent

3. Dishonest, 9 percent

4. Inspiring, 8 percent

5. Liberal, 6 percent

6, 7 (tie). Obama's race, young, 6 percent

8. Not likable, 5 percent

9. Intelligent, 4 percent

10. Muslim, 3 percent

The AP-Yahoo News poll is following about 2,000 people to track how individuals' views are changing during the presidential campaign:

Just four in 10 Obama supporters have the same opinion of him that they had in November, with slightly more of the remainder turning more negative. McCain's backers are divided about evenly among those with the same, better or worse views of him.

The poll found ta huge racial divide:

While whites are evenly split over which candidate better understands the problems of ordinary people, they are a bit likelier to say McCain shares their values, and prefer him by 2-to-1 for keeping the country safe. Nine in 10 blacks say Obama would do just fine in each of those areas, with only small fractions saying so about McCain.

The survey suggests Obama faces the bigger problem from increasing negative impressions

Both are seen favorably by about half of those surveyed, and unfavorably by roughly four in 10. But Obama's image has deteriorated with two crucial groups: 52 percent of whites view him negatively, up 12 points from November. And 48 percent of independents have an unfavorable view of him, up from 31 percent last fall.

The poll also found that Obama has failed to take advantage of popularity now enjoyed by the Democrats:

Obama has not capitalized on his party's far stronger popularity than the GOP, while McCain is exceeding his party's miserable public perception. Obama is viewed less positively than the Democratic Party by 5 percentage points, while McCain's favorable image is 9 points better than the Republican Party's.

That suggests a lost opportunity so far for Obama, and that McCain has had some success distinguishing himself from a GOP that only four in 10 think of positively.

Finally the poll found Obama continues to have problems with Hillary supporters:

The poll also shows Obama still has wounds to heal with those who backed Hillary Rodham Clinton, his Democratic rival in this year's bitter primary campaign. The number of Clinton supporters who find Obama likable and strong has not improved since November, and those considering him honest has actually dropped.

The AP-Yahoo! News poll of 1,759 adults was conducted June 13-23 and had an overall margin of error of plus or minus 2.3 percent.

The McCain campaign shouldn't worry too much about the age issue.

The New York Times reports  a growing number of studies suggest that an aging brain may be a wiser brain. In addition, being the old guy allows McCain to be perceived as the experienced grown-up.

On the other hand, the Obama folks have got to be worried that even Hillary's endorsement hasn't solved Obama's Democrat deserter problem.