President Trump said Wednesday that a caravan of roughly 2,000 migrants headed from Central America to the US highlights Democrats' weakness on border security.
"The United States has strongly informed the President of Honduras that if the large Caravan of people heading to the U.S.is not stopped and brought back to Honduras, no more money or aid will be given to Honduras, effective immediately!" the president tweeted on Tuesday.
He added: "In addition to stopping all payments to these countries, which seem to have nearly no control over their population, I must, in the strongest of terms, ask Mexico to stop this onslaught - and if unable to do so I will call up the U.S. Military and CLOSE OUR SOUTHERN BORDER!"
On Wednesday, the president also threatened to cut USA aid to the Northern Triangle countries - Honduras, Guatemala and El Salvador - saying "all payments made to them will STOP (END)!".
The Mexican government has said it intends to deport people who enter the country illegally, though they have the right to apply for asylum, and sent 500 federal policy to its border with Guatemala to prepare for the group's arrival, NBC News reported.
He also claimed that the caravan included criminals.
As with a similar march in April, organizers of the march claim they will claim refugee status when they reach the USA border with Mexico.
This is despite the threat from Trump that he would cut aid to Honduras unless they stopped the caravan from arriving at the USA border. Earlier this year, some National Guard members were deployed to the border on a limited mission that does not include contact with migrants. 20,000 of these migrants die or disappear along the way, many of them at the hands of criminal gangs, according to a report by the Mesoamerican Migration Movement.
Trump tweeted Thursday that he wanted "Mexico to stop this onslaught".