After Donald Trump’s succession of early primary victories‚ and Nikki Haley’s stinging loss in Nevada on Tuesday‚ a Biden-Trump rematch seems all but inevitable come November. The outcome of that contest‚ however‚ is far from certain. According to most accounts‚ Biden’s campaign is starting to falter‚ with Trump maintaining a slight edge in the national polls. But anyone tempted to write off Biden should do so with caution. As a new Focaldata-UnHerd poll of six key swing states reveals...