After a bruising primary season, the Republican ticket in New Hampshire looks like an arranged marriage between a popular, moderate, governor in Chris Sununu running for reelection and a more right-wing, self-proclaimed outsider vying for US Senate. After calling each other names, the two men are now united for what they see as the greater good – a Republican Senate and a fourth term for Sununu. And it’s not just in New Hampshire. This newfound unity is more common as the general election approaches and the stakes – GOP victory or defeat – become more real. In Arizona, for instance,...