UPDATE: This morning President Trump issued a Religious Freedom Day Proclamation (full text) which reads in part:
Our Constitution and laws guarantee Americans the right not just to believe as they see fit, but to freely exercise their religion. Unfortunately, not all have recognized the importance of religious freedom, whether by threatening tax consequences for particular forms of religious speech, or forcing people to comply with laws that violate their core religious beliefs without sufficient justification. These incursions, little by little, can destroy the fundamental freedom underlying our democracy. Therefore, soon after taking office, I addressed these issues in an Executive Order that helps ensure Americans are able to follow their consciences without undue Government interference and the Department of Justice has issued guidance to Federal agencies regarding their compliance with laws that protect religious freedom. No American — whether a nun, nurse, baker, or business owner — should be forced to choose between the tenets of faith or adherence to the law.