Poll: Senate races tight in three swing states

Senate races in three battleground states — Florida, Ohio and Pennsylvania — are nearly deadlocked, according to a new Quinnipiac University poll released Wednesday.

In Ohio, incumbent Sen. Rob Portman (R) has 42 percent support, trailing Democratic opponent Ted Strickland, who has 43 percent. The poll sampled 1,042 Ohio voters and has a margin of error of 3 points.

{mosads}In Pennsylvania, Sen. Pat Toomey (R) has a 1-point edge over Democrat Katie McGinty, 45 percent to 44 percent. The poll sampled 1,077 Pennsylvania voters and has a margin of error of three points.

In Florida, Rep. Patrick Murphy (D) leads all five Republican candidates by between 1 and 6 points.

The Republicans running are Reps . Ron DeSantis and Rep. David Jolly, Florida Lt. Gov. Carlos Lopez-Cantera and businessmen Carlos Beruff and Todd Wilcox.

The Florida contest is a race to replace retiring Sen. Marco Rubio (R-Fla.), who vacated his seat to make a failed presidential bid. The poll sampled 1,051 Florida voters and has a margin of error of three points.