A new poll for National Public Radio raises the possibility of an evenly split Senate come 2015.
The survey said January could bring a Senate with 50 Republicans and 50 Democrats.
In cases of ties, Vice President Joe Biden would cast a vote.
The survey points to two sweeping trends rolling through the country.
President Barack Obama is weak in battleground states, but the Republican Party is also very weak and could be a serious liability.
The poll concluded that even in states carried by Mitt Romney in 2012, voters have more favorable views of Senate Democrats than they do of Senate Republicans.
Still, keep in mind that Senate races tend to break toward one of the parties. With Obama’s unpopularity being what it is, that break is more likely to be in the GOP’s favor.