While Sen. John McCain is attracting more support from Republicans than Sen. Barack Obama is from Democrats, his backers continue to be less enthusiastic than Obama supporters; 58% of Obama backers say they support Obama strongly compared with fewer than half of McCain's backers (39%) who describe themselves as strong supporters. McCain's soft supporters are most troubled by his positions on economic issues, while Obama's soft supporters say they are most troubled by his personal abilities and experience.

The Daily Number is a statistic, updated every weekday and typically drawn from Pew Research Center project findings, that highlights an important trend.

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