It’s springtime for Pat Buchanan.

Once a respected voice on the right, erstwhile presidential candidate, and omnipresent talking head, Pat Buchanan has in recent years languished in obscurity, so it would be easy to dismiss him as a bitter, disappointed figure skulking at the fringes since being effectively and appropriately cast out of the conservative movement for his chronic flirtation with anti-Semitism. But it is difficult to deny his influence on a strain of right-wing politics that, until recently, has lain dormant.