Late last week, Donald Trump’s former national security advisor John Bolton sparred with former GOP presidential candidate Vivek Ramaswamy over whether the US should use military power for global security. The debate has highlighted the contrast between the foreign policy ideals of the old and new Right ahead of an election in which voters are keenly aware of heightened geopolitical instability. “The calculus in Beijing is, if America and the West won’t defend against an unprovoked...