I not only hope Trump ignores her, but uses the occasion to declare a national emergency at the border. He should then explain in addition to declaring the national emergency, which will be initially stopped by a liberal judge, that he will not agree to open the govt until the funding for the wall is authorized. Trump should declare "I have no intention of being reasonable when the security and sovereignty of the USA is at stake".
He can outline how all the facts are on his side. How walls work, just ask Israel. How he has been more than willing to sit down and discuss the issue to find some area of compromise.
I think f he does these things he will win.