Widespread debate about how to reform the U.S. immigration system has become a major theme in this year’s presidential race. The growing awareness of an estimated 11 million undocumented immigrants in the U.S. has sparked Republican candidate Donald Trump to promise that, if elected, he would round up all “illegal” immigrants and expel many of them from the United States upon taking office. Even scholars who reject such extreme measures as impractical and counter-productive argue that U.S. immigration policy needs to undergo significant reforms.
