Graham Platner, the presumptive Democratic Senate nominee in Maine, faces scrutiny over revelations he sexted multiple women.
Democratic Sen. Cory Booker expressed concerns about Platner.
The controversy adds to past issues including a now-covered tattoo recognized as a Nazi symbol and online comments denigrating police and White people.
AI-generated summary was reviewed by a CNN editor.
Democrats already facing a difficult path to recapture control of the US Senate are grappling with the latest revelations about Graham Platner, the presumptive Democratic nominee set to face Sen. Susan Collins in a must-win race for the party.
