What is the policy aimed at doing and is it achieving its goals and objectives?

What is the policy aimed at doing and is it achieving its goals and objectives?
what are some of the existing critics or proponents of the executive order?
Were the legislative branch and the executive branch in agreement on the policy? why or why not?
Did any branch of the government exert any influence to block the law or executive order? if so what branch and did they use powers under checks and balances?