Poll: Nearly two-thirds of GOP voters can imagine backing Trump
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A new national poll by The Wall Street Journal and NBC News found that 65 percent of Republican primary voters could see themselves backing Donald TrumpDonald John TrumpDems flip Wisconsin state Senate seat Sessions: 'We should be like Canada' in how we take in immigrants GOP rep: 'Sheet metal and garbage' everywhere in Haiti MORE for president in 2016.

That figure was at 23 percent when the poll asked the same question in March.

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The shift shows increasing acceptance of the billionaire businessman in the GOP ahead of the Iowa caucuses on Feb. 1.

However, Ted CruzRafael (Ted) Edward CruzWith religious liberty memo, Trump made America free to be faithful again Interstate compacts aren't the right way to fix occupational licensing laws Texas Dem: ‘I don’t know what to believe’ about what Trump wants for wall MORE and Marco RubioMarco Antonio RubioOvernight Cybersecurity: Bipartisan bill aims to deter election interference | Russian hackers target Senate | House Intel panel subpoenas Bannon | DHS giving 'active defense' cyber tools to private sector Senators unveil bipartisan push to deter future election interference Puerto Rico's children need recovery funds MORE still lead in the category. Seventy-one percent of GOP voters could see themselves backing Cruz, and 67 percent could imagine backing Rubio, the poll found. In March, Cruz was at 40 percent on that question and Rubio was at 56 percent. 

Jeb Bush, who led the category in June, at 75 percent, is now down to 42 percent.

The survey included 400 GOP primary voters contacted Jan. 9-13. The margin of error was 4.9 percentage points.