"My son, fear the LORD and the king, and do not join with those who do otherwise, for disaster will arise suddenly from them, and who knows the ruin that will come from them both?" (Proverbs 24:21-22 ESV)
Even though in the United States of America we call our Commander-in-Chief the "President," for all practical purposes he is our king. Whether or not we agree with everything he does or if all his motives are godly, God has appointed him to be our leader for the present time, so it is not for us to rebel against him. We have the right to state our views and convictions, and it does make a difference, but we are obligated to obey the law. The only time to disobey the law is when it requires us to disobey God, and for now we are able to live godly and obey the law. Sure, people get away with things that are ungodly, but they must stand before God for the choices they make.