Trump slump? At least some foreign tourists put off US travel

What you need to know:

Although solid data is not yet available, the Republican president's first travel ban sent a jolt through the world tourism industry when it came into effect in late January.
Besides travelers from the seven Muslim-majority countries initially targeted, anecdotal shows evidence of a knock-on effect further afield.
The online tour operator Kayak saw a 23 percent decline in flight searches from Europe to the United States the day after the ban was enacted.