Trump responded by blasting the 'So-Called Judge' Who Lifted Travel Ban.

Donald J. Trump ? @realDonaldTrump

The opinion of this so-called judge, which essentially takes law-enforcement away from our country, is ridiculous and will be overturned!

Donald J. Trump ? @realDonaldTrump

When a country is no longer able to say who can, and who cannot , come in & out, especially for reasons of safety &.security - big trouble!

Some legal experts condemned the attack on Judge Robart. "For a sitting president to direct a petty personal attack at a (federal) judge simply because the judge rules against him in pending litigation is unworthy of the office," said University of Pennsylvania law professor Tobias B. Wolff. "It is nothing less than an attack on the judiciary and the rule of law."