Would-be visitors say President Trump’s handling of tariffs and calls for Canada to become a 51st state are turning them off.

Nearly 3,000 feet above, it had been a winter night atop West Mountain. Down below but less than three miles away, it was summer along the shores of Lake Cascade. Such is Idaho.

The U.S. Department of Agriculture’s Food and Nutrition Service told the Idaho Department of Health and Welfare (DHW) to ...