There’s no question that undocumented workers were hired to do demolition work on the future site of Trump Tower. Questions remain as to how involved Trump was in the construction process and hiring of the 200 Polish laborers, but Clinton is factually correct to say that undocumented labor helped construct Trump’s New York skyscraper.
Yes, I do believe that Trump is sincere in his anti-immigration beliefs. Trump is a smart businessman that does what is best for the current situation he is in. At the time he needed workers to build a structure and that was the best option at that time. Now he has a different job at hand if he wins the election which is running the United States. For that job the best option at the time is stopping illegal immigration.
Yes, Trump will do whatever is advantageous to his businesses and personal interests. He wants immigrants to stay out, but he knows that he can't keep everyone out. He'll continue to use undocumented workers, pretending he did not know that they were here illegally. He wants it both ways -- he wants illegals out but he wants them to build his empire cheaply. So he's not insincere, he's just illogical and he feels entitled to getting whatever he wants.
No, he is not sincere about his anti-immigration beliefs because he has used immigrants to build his towers. Plus, he married someone from a foreign country. He is only trying to cater to what the GOP base wants to hear. Unfortunately for him, he has taken his beliefs too far.