Democrats are hoping to avoid a repeat of former Vice President Kamala Harris‘s shotgun run for president as they grapple with how to replace Graham Platner, their nominee in Maine‘s marquee Senate race.

Platner’s exit from the race, announced on Wednesday night in the face of sexual assault allegations, gives party leaders until the end of the month to select a new candidate to face Sen. Susan Collins (R-ME), a five-term incumbent and the most formidable Republican in Maine politics.