A new ONE Poll conducted by the GOP firm McLaughlin & Associates shows Mitt Romney with nearly a three-to-one lead over the rest of the field in Iowa:

Romney 35
Giuliani 12
Thompson 11
Huckabee 11
Tancredo 9
McCain 7
Undecided 10

With the ARG poll from yesterday also showing a bump for Romney, the former Massachusetts Governor now leads the field by a whopping 17.5% in the latest RCP Average for Iowa.