After much sidestepping, a lawyer representing Melania Trump’s parents has confirmed that they obtained U.S. citizenship on Thursday through “chain migration,” an immigration program that allows U.S. citizens to sponsor immediate family members for legal residency and that President Donald Trump has repeatedly said he wants to end. Michael Wildes, the lawyer for the first lady’s parents Viktor and Amalija Knavs, would not comment when reporters outside the Jacob K. Javits Federal Building in New York…