Iowa's Senate race is all tied up, according to a last-minute Quinnipiac poll released Monday morning, offering Democrats a ray of hope in what could be a must-win contest.
Rep. Bruce Braley (D) and Republican Joni Ernst tied at 47 percent apiece in the poll. That's a four-point swing in Braley's favor since Quinnipiac's previous survey.
The results come two days after a Des Moines Register poll showed Ernst with a seven-point edge. FiveThirtyEight gives Ernst a 71 percent chance of wining the seat.