Washington: A White House official on Sunday criticised a US court ruling that blocked President Donald Trump's executive order on immigration as a "judicial usurpation of power" and said the administration is considering a range of options, including a new order.

Sustained criticism of the judiciary from the White House comes amid concern among Democrats and legal scholars over Trump's view of the constitutional principle of judicial independence as the administration seeks to overcome legal setbacks to its travel ban issued on January 27.

The Republican president said on Friday that he may issue a new executive order rather than go through lengthy court challenges to the original one, which restricted entry to the United States of people from seven Muslim-majority countries.

"We have multiple options and we are considering all of them," White House adviser Stephen Miller said on ABC's This Week.