The father of a man killed by an illegal immigrant in a car crash has challenged President Obama to visit his son’s grave before declaring any executive action halting deportations. In a letter that Don Rosenberg sent last month to Mr. Obama through top officials at the Homeland Security Department, the grieving father said his son Drew might be alive had the federal government deported illegal immigrants who had run-ins with the law. “My son and all of the others are considered collateral damage in the quest for votes and campaign contributions,” he wrote. “Illegal immigration is not a victimless...