In the latest CNN poll, a large percentage of respondents fell into this category. Among Obama supporters, 26% of likely voters "moderately" support him while 30% of registered voters "moderately" support him. Among Romney supporters, 28% of likely voters "moderately" support him and 35% of registered voters support him.

These numbers are not insignificant. In a race that involves both rallying the base and attracting independents, especially in the swing states, turning moderate support to strong support as well as registered voters to likely voters can be a key to victory.

2012 finale

Like any election, this one is defined by key moments. Certainly, Romney's victory in the primary was one. Mitt and Ann Romney's speeches at the Republican National Convention -- and, likewise, Barack and Michelle Obama's at the Democratic National Convention -- were as well.

Since the conventions Democrats have gained ground and a secretly taped video of Romney's offhand comments about 47% of Americans not paying taxes has surfaced. It would be surprising if Obama doesn't allude to Romney's comment in some way, even if in passing.

On the foreign policy front, a terrorist attack in Libya on September 11 left a U.S. Ambassador dead, and questions remain glaringly unanswered regarding the Obama administration's handling of security in Libya. Romney is expected to bring up this issue.

Back in late February was the "season finale" of the primary debates, which in retrospect seemed like the ultimate reality show with more twists and turns than a "Real Housewives" reunion. Now we get the season premiere of the general election debates with four highly anticipated episodes before the 2012 series finale. The comedy shows can have their fun -- but the real drama begins tonight in Denver.

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