President Trump’s executive orders this week outline a sweeping agenda, from declaring an invasion at the border to curtailing birthright citizenship. But significant questions remain about what’s next.

Border enforcement agencies have spent billions assembling surveillance tools to track and find people. These could be critical in President Trump’s immigration agenda.

On President Trump’s first day in office he signed a handful of executive orders to launch his promised crackdown on immigration and declared a national emergency at the border to empower the military to support border patrol.