A poll commissioned by the Democratic Senatorial Campaign Committee shows U.S. Sen. Susan Collins (R-Bangor) leading her challenger and U.S. Rep. Tom Allen (D-Portland) 49 to 41 percent.
The poll also looked at the presidential race in Maine, where Democrat Barack Obama led Republican John McCain 52 to 35 percent.
The poll was commissioned by the Mellman Group, and surveyed 600 likely voters. It has a four percent margin of error.