Rep. Sean Duffy (R-Wis.) is set to resign today, effective at 6 pm, and after the announcement from Rep. Paul Cook (R-Calif.) last week to leave Congress next year to run for a seat on the San Bernardino County Board of Supervisors, a total of 18 House Republicans have decided to resign, retire or run for another office this year. In the Democratic Presidential Primary, Senator Elizabeth Warren surpassed VP Joe Biden in a new Iowa poll which put the Senator at 22 percent with likely caucus-goers in the state and the former VP at 20 percent. This is the first time Warren has been shown leading Biden, who continues to struggle to maintain his lead as the frontrunner.