At 15 percentage points, he leads a big, tightly packed field of potential contenders in a new Des Moines Register/Bloomberg Politics Iowa Poll of likely Republican caucusgoers. The caucuses are scheduled for Feb. 1, 2016.

The Wisconsin governor is also the No. 2 most popular choice for likely caucusgoers who want an establishment candidate, and he’s the No. 2 for those who want an anti-establishment candidate, the poll shows.

“He’s in a sweet spot,” pollster J. Ann Selzer said. “People who don’t want an ultra-conservative think he’s OK. People who don’t want a moderate think he’s OK.”