The Ninth Circuit decision will be overturned by the SC. Eighty percent of their cases are.

From the Washington Post: By accepting the use of preelection statements to impeach and limit executive policy, the 9th Circuit is taking a dangerous step. The states’ argument is in essence that Trump is a bigot, and thus his winning presidential campaign in fact impeaches him from exercising key constitutional and statutory powers, such as administering the immigration laws.

The opinions clause in the Constitution is a protection for free speech. Candidates Left, Right and Center will chill their campaigns if this is allowed to stand. I believe the count will be 8 - 0 to reverse the 9th's decision.

Also. look at Arizona trying to curtail illegal immigration. The court ruled that Obama had the power as Executive to make immigration policy, not the States or the Judiciary.