The conservative majority on the Supreme Court voiced concerns on Wednesday during arguments over whether or not President Donald Trump had the authority to issue a ban on immigrants from certain Muslim-majority countries on the grounds of national security, according to The Washington Post.
Lower courts have already struck down the three versions of the president's proclamation, but the conservative-dominated Supreme Court is the final hope for Trump after allowing the ban to go into effect last December while it considered the challenges to the ban.
Solicitor General Noel J. Francisco argued that the president was within his power when he issued the proclamation that came after a thorough, worldwide review.
Francisco told the justices that the initiative applied to a "tiny" number of countries and still permitted the majority of travelers to enter, including those from other Muslim majority countries.
Chief Justice John G. Roberts Jr. suggested that the president was receiving information about national security that the courts were unprepared to second guess, but Justice Anthony Kennedy asked questions about the president's authority at issuing the ban.
SCOTUS is considering the third iteration of Trump's travel ban which was issued last fall and barred travelers from eight countries, six of them with Muslim majorities, including Syria, Libya, Iran, Yemen, Chad, Somalia, North Korea, and Venezuela.
Chad was removed from the list earlier this month and the restrictions on Venezuela and North Korea were not part of the legal challenge.
Justices Ruth Bader Ginsburg and Sonia Sotomayor noted their dissent from the high court's earlier order that allowed the ban to go into effect, with Sotomayor noting how Congress already took steps to implement a heightened vetting process before the ban.