Updated February 13, 2017 09:02:57 Washington state’s Attorney-General said he would depose Trump administration officials to uncover “what truly motivated” President Donald Trump’s executive order on immigration if the case brought against it is taken to the Supreme Court. Key points: Attorney-General’s comments follows those of a senior adviser who said Trump will win Senior White House adviser said barring US entry is the “apex of presidential authority” Mr Trump has suggested that he may issue a new executive order over fighting the courts Attorney-General Bob Ferguson said the documents and emails authored by administration officials may contain evidence that the order was an unconstitutional attempt to ban Muslims from entering the United States, and pledged on ABC America’s This Week program that he would use “every tool” at his disposal to bring those attempts to light. Mr Ferguson’s comments came in response to those of White House senior policy adviser Stephen Miller, who over the weekend repeatedly called the federal appeals court’s decision to block the order a “judicial usurpation of power” and said the world would see “the president’s powers here are beyond question”. “It has been an important reminder to all Americans that we have a judiciary that has taken far too much power and become in many cases a supreme branch of government,” Mr Miller told CBS’ Face The Nation program. “One unelected judge in Seattle cannot remake laws for the entire country, I mean this is just crazy. “The end result of this though is…more detail