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Eric Gay, Associated Press
Republican presidential candidate Rep. Ron Paul, of Texas, left, signs a toy car during a campaign stop, Friday, Dec. 30, 2011, in Le Mars, Iowa.

SIOUX CITY, Iowa — Republican presidential candidate Ron Paul is at or near the top of polls in Iowa, where he's drawing big crowds and has an enviable campaign organization.

But with Iowa's caucuses on Tuesday, the Texas congressman plans to head home for the weekend, the latest evidence of an unconventional approach to winning the GOP nomination.

From his low-tech events and his relatively small entourage to his reluctance to glad-hand voters, Paul has stubbornly adhered to his own playbook.

The rest of the Republican field is bracing for a grueling weekend of campaigning. But Paul plans to fly to Texas late Friday night to spend the weekend with his wife.

He's set to appear on Sunday morning talk shows from Texas, and then return to Iowa by Monday morning to campaign.