It is not unusual for Washington Republicans to receive visitors — candidates‚ lobbyists‚ political donors — who boast about their commitment to securing the border and cutting taxes. It’s not every day that one of those visitors used to run Denmark. Yet on a recent Thursday afternoon‚ several hard-line members of the House found themselves listening to Anders Fogh Rasmussen as the former Danish prime minister emphasized his small-government values. As a head of government‚ Rasmussen told...