New data unveils an even sharper drop-off in Canadian travelers to the U.S., and it’s not just tourists snubbing American cities—it’s business leaders as well. Dallas saw a nearly 50% year-over-year drop in Canadian visitors, and Grand Rapids saw a 53% drop. Chapple sees the loss of business travelers as even costlier than tourists. Business travel represents about 20% of total travel to the U.S., but accounts to about 60% of air and lodging revenue, according to the U.S. Travel Association. Still, Chapple warned, fewer Canadian visitors in the long run could be a harbinger of more economic pullback from one of the U.S.’s key historical allies.