Washington( CNN) Ted Cruz has risen ahead of Donald Trump in a brand-new Iowa poll, opening up a 10 -point lead in the critical first-in-the-nation voting state.

The Des Moines Register and Bloomberg Politics poll released on Saturday encounters Cruz dominating 31% of likely Republican caucus-goers in the district, 10 phases ahead of Trump, who received 21%.

For Cruz, the canvas represents a massive 21 -point jump from a survey conducted by the two stores in October.

Cruz and Trump will face off Tuesday in Las Vegas at the next Republican presidential dialogue, sponsored by CNN.

“We have more work to do, but we can definitively say the meaning is working, ” Cruz’s Iowa state director, Bryan English, told CNN in a statement.