Graham is also proposing hiring 500 new immigration judges to deal with an asylum application backlog that he said currently comprised 900,000 applications.

“If we do these four things, then the incentive created by our laws will cease to exist and this humanitarian crisis will begin to repair itself,” he said.

Graham’s announcement comes amid efforts by top White House advisers to rally Republicans around a unified message on immigration ahead of the 2020 election. The new push comes as President Donald Trump, who built his 2016 candidacy on immigration and a promise to build a wall along the southern border, has struggled to obtain concrete results on his immigration policies in the first two-plus years of his presidency.