The battle between Donald Trump and Nikki Haley has emerged as a contest of competing foreign policy visions, with voters in New Hampshire set to deliver a verdict on America’s role in the world, including on whether to keep funding Ukraine.
The vote in the New England state on Tuesday could represent an early watershed moment in the 2024 race for the White House. If Trump wins a sufficiently convincing victory over Haley — now his only opponent after Florida governor Ron DeSantis’s withdrawal — he could cruise to the party’s nomination.
But it is also a test of Republican sentiment on US national security policy. Trump, the former president, has long championed the more isolationist streak that has been gaining traction on the right of American politics.