Maine Senate candidate Graham Platner is declaring that his primary race against Gov. Janet Mills is nearly over, two months ahead of the June 9 primary election. Platner's team has told donors and allies that he is focusing on the general election, with polls showing him leading Mills by double digits. The Maine Democratic contest against Republican Sen. Susan Collins is one of the country's most contentious primaries, exposing party divisions over age, gender, and ideology. Mills has been negative against Platner, with ads featuring women criticizing controversial comments he made on social media about rape. The campaign plans to continue debate with Mills before the primary election, and will take down an ad countering Mills' negative spots later this week.