Sen. Susan Collins (R-ME) holds a narrow lead over Democratic challenger Troy Jackson in Maine, according to a new poll that also found Democrats with leads in two key Senate races as the party seeks to retake the chamber in November.

The New York Times/Siena College poll found Collins, a longtime staple in Maine politics, leading Jackson 49% to 46% among likely Maine voters. The survey was conducted almost entirely before a ProPublica report published Tuesday that detailed an FBI investigation into allegations involving Collins and a defense contractor. Collins’s office has vigorously denied the allegations. 

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