Donald Trump is now 10 points below Ted Cruz in Iowa in the latest poll released by The Des Moines Register/Bloomberg Politics.
Cruz is backed by 31 percent of those likely to attend the Republican caucuses that start the presidential nomination season on Feb. 1. Trump is in second at 21 percent, up slightly from 19 percent in October, but below his peak of 23 percent in August.
According to The Des Moines Register, there are signs Cruz may not have peaked in Iowa yet.
Another 20 percent of likely caucusgoers say he's their current second choice for president. Cruz hits 51 percent support when first- and second-choice interest is combined, again leading the field.
Ben Carson has plunged 15 points from his first place finish in October. He's now in third place.
Jeb Bush came in with 6% and Rand Paul came in with only 3%, This means that if CNN sticks to its announced rules for determining who will make it onto Tuesday's prime time debate stage, Rand won't make it,