even though international tourism surged 7% last year, trips to the united states fell about 4%. that is from the united nations world tourism organization. my partner, ali velshi, is back with us, live from the world economic forum in davos, switzerland. ali, part of this is being blamed on what is called the trump slump. >> reporter: right. so remember, some of this started after 9/11, when extra security concerns caused a lot of people who were traveling for vacation or holding con veferen in the united states to do something else. they didn't want the hassle. while travel went up for several years, it's been declining in the united states. it got really serious after the election of donald trump. here's what i found out. from our famous national parks to our equally famous theme parks, foreign tourists are checking out of the united states. the latest data from the national travel and tourism office shows a 4% decline in visits from foreign travelers and a 3.3% drop in travel spending. it's costing the u.s. economy more than $4.6 billion in spending that's gone. with it, an estimated 40,000 american jobs. where we should have been gr