(BLOOMBERG) — President Donald Trump is emphasizing his vow to build a wall at the U.S.-Mexico border and additional conditions for an immigration deal, as congressional leaders and White House officials plan a meeting Wednesday that will set terms for a coming debate on the issue.

GOP lawmakers have largely avoided talking about the border wall, a central Trump campaign promise, in negotiations with Democrats on legislation to provide protection against deportation for 800,000 young undocumented immigrants while also bolstering border security and interior enforcement of immigration laws.

House Majority Whip Steve Scalise, a Louisiana Republican, didn’t mention a wall during an appearance on Fox News Tuesday, saying only that “there is an agreement that can be reached,” but “it’s got to start with border security.”

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