Poll: Trump edges ahead of Cruz in Iowa
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Republican presidential front-runner Donald Trump narrowly edges out Sen. Ted CruzRafael (Ted) Edward CruzCheney drama exposes GOP's Trump rifts Pollster Frank Luntz: 'I would bet on' Trump being 2024 GOP nominee Tim Scott sparks buzz in crowded field of White House hopefuls MORE (R-Texas) for the lead in Iowa, a new poll released Tuesday finds. 

The Public Policy Polling (PPP) survey shows the real estate mogul leads Cruz, 28 to 25 percent, within the margin of error. But while Trump leads, Cruz has been building the most momentum, gaining 11 points since the organization's November poll. Trump picked up 6 points since the last poll.

Cruz also had a higher favorability rating, 68 to 20 percent, compared to Trump’s favorability, 53 to 36 percent. 

“Ted Cruz’s momentum in Iowa is getting all the attention,” Dean Debnam, president of Public Policy Polling, said in a news release. “But Donald Trump is on the up swing there as well.” 

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Sen. Marco RubioMarco Antonio RubioDemocrats cool on Crist's latest bid for Florida governor Tim Scott sparks buzz in crowded field of White House hopefuls The unflappable Liz Cheney: Why Trump Republicans have struggled to crush her  MORE (R-Fla.) is in a distant third place, with 14 percent, followed by retired neurosurgeon Ben Carson, with 10 percent, and former Florida Gov. Jeb Bush with 7 percent. 

New Jersey Gov. Chris Christie, former Hewlett-Packard CEO Carly Fiorina and former Arkansas Gov. Mike Huckabee all hit 3 percent. Ohio Gov. John Kasich and Sen. Rand PaulRandal (Rand) Howard PaulTim Scott sparks buzz in crowded field of White House hopefuls Sherrod Brown calls Rand Paul 'kind of a lunatic' for not wearing mask Overnight Health Care: WHO-backed Covax gets a boost from Moderna MORE (R-Ky.) both received 2 percent, while Sen. Lindsey GrahamLindsey Olin GrahamMcConnell safe in power, despite Trump's wrath Lindsey Graham: GOP can't 'move forward without President Trump' House to advance appropriations bills in June, July MORE (R-S.C.) and former Sen. Rick Santorum (R-Penn.) both register at 1 percent. 

The poll, which was conducted after Trump’s proposal to temporarily ban Muslims from entering the United States, found that 78 percent of voters support his ban, while 13 percent oppose it.

Recent Iowa polls have found Trump and Cruz neck and neck. Last week, a Monmouth University poll found Cruz leading Trump while a new Quinnipiac University poll on Monday showed Trump narrowly ahead of Cruz. 

A RealClearPolitics average of Iowa GOP polls shows Cruz leading Trump by 1 percentage point.

The poll was conducted from Dec. 10 to Dec. 13 and surveyed 522 usual GOP primary voters via phone and Internet. The margin of error was 4.3 percentage points.