The Harris campaign, which has been praised for how it has managed to reach out to women, is now having to balance their attention and pitch some policies that would appeal to men. But is it too little too late? Jonathan Freedland speaks to Richard Reeves, the president of the American Institute for Boys and Men, and Gloria Oladipo, a breaking news reporter for Guardian US, about why men could decide this year’s election and why both campaigns might be taking them for granted