Could any sort of travel ban cost the US a chance to host a World Cup? Yes, according to the FIFA president:

From ESPN FC:

FIFA president Gianni Infantino indicated on Thursday that U.S. President Donald Trump’s controversial travel ban could prevent the United States from hosting the World Cup.

“It’s obvious when it comes to FIFA competitions as well, any team, including the supporters and officials of that team, who qualify for a World Cup need to have access to the country, otherwise there is no World Cup,” Infantino said.

What does NOT cost a country a chance to host the World Cup? Well, let’s just say FIFA appears willing to look the other way when it comes to some things:

Funny stuff, FIFA!