Former South Carolina Gov. Nikki Haley is gaining ground in the key early nominating state of Iowa, increasing her support among GOP caucusgoers by 10 points since August, according to a Monday poll.

Haley is tied for second with Florida Gov. Ron DeSantis in Iowa at 16%, following former President Donald Trump’s lead with 43% support, according to a Des Moines Register/NBC News/Mediacom poll. While support for Haley increased from 6% to 16% in two months, DeSantis’ dropped by 3 points and Trump’s increased by only 1 point.

South Carolina Sen. Tim Scott, whose support dropped by 2 points since August, is polling in third place with 7%, according to the poll. Former New Jersey Gov. Chris Christie and conservative businessman Vivek Ramaswamy both received 4%, with the former’s support dropping by 1 point and the latter’s remaining the same.

North Dakota Gov. Doug Burgum increased his standing by 1 point, garnering 3% support in the key early state, the survey found. Former Arkansas Gov. Asa Hutchinson, who didn’t register in the August survey, received 1%.