In the US, Trump's administration has vowed to appeal to the Supreme Court after a federal judge dealt a fresh setback to the President's ban on travelers from six mainly Muslim countries and refugees. <br/><br/>Attorney General Jeff Sessions, in a strongly-worded statement, accused the Hawaii court of having undermined national security, delayed necessary action, created confusion and violated a proper respect for separation of powers. <br/><br/>He charged the lower court has improperly substituted its policy preferences for the national security judgments of the executive branch in a time of grave threats, defying both the lawful prerogatives of the executive branch and the directive of the Supreme Court.<br/><br/>The travel ban, which the administration insists is necessary to keep violent extremists out of the country, has faced a series of judicial roadblocks from lower courts. <br/><br/>But the administration gained partial satisfaction last month when the Supreme Court ruled that it could proceed with its plan to prohibit the entry of some people from countries deemed dangerous, while still allowing visits by people with a credible claim of a bona fide relationship with a person or entity in the United States.<br/><br/>The Supreme Court's ruling allowed a 90-day ban on visitors from Iran, Libya, Somalia, Sudan, Syria and Yemen, and a 120-day ban on refugees to come into force, with exceptions for those people with "bona fide" relationships.