by Bill Finley and Dan Ross Throughout his campaign, President Donald Trump vowed to crack down on illegal immigrants, a promise he has kept during the first few weeks of his new administration. That has created much uncertainly on the backstretches of the nation's racetracks and at the horse farms spread across the country, both of which rely heavily on foreign labor. Should the U.S. Immigration and Customs Enforcement (ICE) set its sights on racing and start deporting backstretch employees that would mean a major crisis for a sport. A former...