Quinnipiac: Donald Trump gets 25 percent of Iowa likely Republican Caucus participants in a too-close-to- call race with Sen. Ted Cruz of Texas who is at 23 percent, double his support from four weeks ago, according to a Quinnipiac University poll released today. Dr. Ben Carson has 18 percent, with Sen. Marco Rubio of Florida at 13 percent. This compares to the results of an October 22 survey by the independent Quinnipiac (KWIN-uh-pe-ack) University showing Carson at 28 percent, with 20 percent for Trump, Rubio at 13 percent and Cruz at 10 percent. One thing that hasn't changed is the poor showing for former Florida Gov. Jeb Bush, who goes from 5 percent October 22 to 4 percent today. Today, Sen. Rand Paul is at 5 percent, with Carly Fiorina at 3 percent. No other candidate tops 2 percent, with 2 percent undecided. Among Iowa Republican Caucus-goers, 26 percent say they "would definitely not support" Bush, with 23 percent saying "no way" to Trump. ...