President Trump said he will soon seek authorization for a measure that would cut foreign aid to countries sending waves of migrants to the US.
"When countries abuse us by sending people up — not their best — we’re not going to give any more aid to those countries," he said at a small business event in Washington. "Why should we?"
Trump has threatened to withhold aid over immigration before.
In April, Trump said Honduras' US aid is "in play" because of a caravan of migrants moving through Mexico who plan to turn themselves in and request asylum once they make it to the US border.
In May, at a roundtable discussion about immigration, he announced his administration was devising a plan to withhold US foreign aid funds from the home countries of immigrants who illegally enter the United States.