Trump's immigration crackdown is contributing to a summer lifeguard shortage

About 100,000 international students work in popular US tourist hubs each summer. Karen Warren/Houston Chronicle via Getty Images International students travel to the US each summer to work at seasonal and small businesses. Now, US immigration rules and global dynamics are making it harder for students to obtain visas. Some businesses have noticed a decrease in candidates this summer. Armed with fuzzy towels and gobs of sunscreen, Americans flocked to pools and beaches on Memorial Day to ki...