President Trump’s revised executive order, commonly referred to as the travel ban, will be reviewed by a federal appeals court on Monday afternoon. The case, International Refugee Assistance v Trump, is centered on a battle between presidential authority and the rights of foreigners to travel to the United States. The Fourth Circuit Court of Appeals in Virginia will decide if the travel order violates the First or Fourteenth amendments to the Constitution or the anti-discrimination section of the Immigration and Nationality Act. The Constitution does not usually apply to non-U.S. citizens on foreign soil. But a professor of immigration law...