Iowas U.S. Senate race is too close to call, while New Hampshires battle is tilting in favor of the incumbent, according to a new Marist/NBC News poll.
Both are currently Democratic-held seats, and Republicans see both as opportunities. Republicans need a net gain of six seats to win control of the Senate.
In Iowa, Rep. Bruce Braley, a Democrat, and State Sen. Joni Ernst, a Republican, are in a 43-43 tie. Each runs strong in their own party, and a gender gap also keeps this a close matchup, said a Marist analysis.
Braley is leading among women, Ernst among men. And, Marist noted, A notable proportion of Iowans have yet to form an opinion about each of these candidates.
Theyre vying to replace Sen. Tom Harkin, a Democrat, who is retiring.
In New Hampshire, Sen. Jeanne Shaheen, a Democrat, has opened up an 8 percentage point lead over former Sen. Scott Brown, a Republican.
The gender gap is the difference in this contest, Marist found. Shaheen has a 25 percentage point lead among women, while Brown leads among men by 9.