Shock poll: GOP now leads on generic ballot

Fully 39 percent of registered voters say they would support the GOP candidate for Congress in their district, while 38 percent would back the Democratic candidate. Nearly a quarter of voters, 23 percent, are undecided.

Voters are split almost evenly along party lines. Democratic voters break for their party, 85 percent to 5 percent, while Republicans similarly favor the GOP, 84 percent to 8 percent. Among independent voters, 26 percent would vote for the Democrat, 25 percent for the Republican and nearly half, 49 percent, are undecided.

The GOP’s 1-point advantage comes after three months of tracking in which Democrats maintained a lead ranging between 2 and 10 points on the generic ballot.