ladies, thank you for joining me. i want to start with you and get elizabeth's response as well. the cato institute came out with a gamut of security measures that they said already reduces the risk of terrorists coming into the country. i would go along with the fact we don't need this travel ban. what is your response to that? >> they are wrong because of the primary power the federal government is to make sure the nation is saved under the constitution the president has broad power to make sure he can exclude citizens to impose risk under the national security power. the judiciary is proposed to defer to the president's exercise of those broad powers are not based on what cato says, but based on what the president feels is important. he asked the heads of many agencies in the united states government to identify these countries that pose national security risks and these are noncitizens of the united dates from countries that oppose national security risk.