Vote 2010: poll points to close race for Grijalva seat

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We are less than a month away from the November 2 election and a new poll shows Congressman Raul Grijalva's race might be closer than many thought.

The website Politico.com cites a Colorado poll showing republican Ruth McClung within two ponts of Grijalva.

Today Sarah Palin announced her support of McClung.

And the two candidates will square off Wednesday night in a debate co-hosted by the Tucson Hispanic Chamber of Commerce.

Libertarian George Keane and independent Harley Meyer will also take part.