Trump slips in Rasmussen poll
 
The celebrity real estate tycoon is supported by 17 percent of likely GOP primary voters, a 9-point decline from the same national poll conducted in late July.
 
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The poll offers some hope to other candidates, who have sought to climb out from under Trump's dominating performance in polls heading into last week's debate.
 
Trump took the top spot in polls this week in early-voting states, overtaking Wisconsin Gov. Scott Walker in an Iowa poll and besting former Florida Gov. Jeb Bush in a New Hampshire survey.
 
Florida Sen. Marco Rubio has jumped in the Rasmussen poll from 5 percent two weeks ago to 10 percent, tying for second place with Bush, whose support has remained unchanged.
 
Walker saw his support fall 5 points in the national poll to 9 percent, tying with Carly Fiorina, the only woman in the GOP field. Fiorina is widely viewed as the star of last week's undercard debate. 
 
The former Hewlett-Packard CEO has skyrocketed in the Rasmussen poll, up 8 points from the pre-debate version. She has soared to the top level in other polls in Iowa and New Hampshire this week. 
 
The survey of 651 likely GOP primary voters was conducted Aug. 9-10 with a margin of error of 4 points.