WASHINGTON--President Barack Obama set up debate camp at a Westin resort hotel in the Las Vegas suburb of Henderson, a pocket of Nevada his campaign gauges can yield more Democratic votes by his presence there for a few days before the Denver debate on Wednesday.

The Romney campaign, in a counter move, is sending Ann Romney to Henderson on Monday afternoon for a rally at the Henderson Convention Center.

Meanwhile, Vice Presidential nominee Paul Ryan stumps in Iowa while Mitt Romney on Monday arrives in Denver where he headlines a rally Monday night, taking a break from debate prep.