Dec. 15, 2015 — Two new surveys, both conducted during the Dec. 7-10 period from two different pollsters, find Sen. Ted Cruz (R-TX) eclipsing Donald Trump in Iowa for the first time in a month. A third poll, that from Monmouth University (Dec. 3-6; 425 likely Iowa caucus attenders) and reported upon last week, also found the Texas senator surging into first place among likely Hawkeye State GOP caucus attenders.
The Selzer & Company poll conducted for the Des Moines Register and Bloomberg News (804 likely caucus attenders; 400 Republican; 404 Democratic) posts Sen. Cruz to his largest lead to date, 31-21 percent over Trump. Dr. Ben Carson, consistently losing support in Iowa since topping Sen. Marco Rubio (R-FL) and Trump 27-17-15 percent, respectively, in the Iowa State University poll (Nov. 2-15; 518 likely Iowa Republican caucus attenders), places third with 13 percent. Sen. Rubio follows with 10 percent, the last candidate placing in double-digits. Former Gov. Jeb Bush and Sen. Rand Paul (R-KY) trail with five percent apiece.
The Fox News poll (807 likely caucus attenders; 450 Republican; 357 Democratic) finds similar results, but with closer margins. Here, we see Cruz leading Trump 28-26 percent, with Rubio and Carson trading places and percentages. This poll finds Rubio at 13 percent and Carson with 10 percent, meaning the two are virtually tied when comparing results. Bush registers six percent, with Sen. Paul, Gov. Chris Christie (R-NJ), and ex-Gov. Mike Huckabee (R-AR) each drawing three percent support.