Here is a look at some of the stories that CNN plans to follow this week:

Obama intends a more energetic debate performance Tuesday, aide says

President Barack Obama reportedly was disappointed in his own debate performance  against Republican challenger Mitt Romney earlier this month. One of Obama's top advisers says he'll be more rigorous on Tuesday, when the presidential candidates participate in a town hall-style debate in Hempstead, New York, at Hofstra University.

"He knew when he walked off that stage, and he also knew as he watched the tape of that debate, that he has to be more energetic," Robert Gibbs said Sunday on CNN's "State of the Union" to Candy Crowley, who will moderate the debate.

Polls after the October 3 debate showed most respondents thought Romney won the first match-up, and he's achieved a bump in voter-choice polls. CNN's October 9 Poll of Polls, calculated using at least three polls that use CNN-approved methodology, had Romney with a slim lead over Obama nationally, 48% to 47%. Eight days earlier, the Poll of Polls had Obama up by 3 percentage points.

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