Jackson Denies Regret Over Telling Collins to 'Shut Up' During Debate

• Troy Jackson, a Maine Democrat, told Susan Collins to 'shut up' after she suggested a protester was his supporter.
• Jackson denies any involvement in arranging the protest and claims he had no idea who the protester was.
• Multiple news outlets, including The Boston Globe, ABC News, and PBS NewsHour, have reported on the incident.
• Jackson maintains his stance despite Collins' accusation and the ensuing media coverage.
• The incident occurred during a recent Maine Senate debate.