Migrant caravan sets out from southern Mexico bound for US after midterms 

United States President Donald Trump has warned Mexico that it must stop a group of migrants travelling through the country towards the US border or face a doubling of tariffs.

“Huge CARAVANS are forming and beginning their illegal march through Mexico. Many of the people in these Caravans are those that various countries don’t want,” Trump wrote on Truth Social on Thursday. The president said that a “perceived loss” by his Republican Party in last week’s midterm elections had emboldened the migrants, and that he was putting the incoming Democratic governor of the border state of Texas on notice about the issue.

Republicans lost control of the House of Representatives and the Senate in the midterm elections, with Democrats flipping multiple seats in both chambers of Congress.

More than a thousand migrants began marching on Tuesday through southern Mexico in a caravan, encouraged by last week’s Democratic victory in the elections, as Mexican authorities blocked a second, smaller group from trying to reach the US.

The caravan, called “God With Us”, was en route on Wednesday after setting off the day before from Tapachula, near the Guatemalan border, according to the Reuters news agency.

A Chiapas state government source estimated about 1,500 people were taking part, including many families, with parents carrying small children in their arms, in strollers or on their shoulders.

The migrants, mostly from Central America, said they aim first to reach Mexico City, more than 1,000km (621 miles) away, a journey likely to take at least several weeks, to seek help from the Mexican government and protection from detention.

Tapachula is a key transit point for migrants heading to the US, and thousands have become stranded there because of US entry restrictions and deportations, with few jobs, little healthcare and limited access to schools.

Caravans are common, but many migrants said the Democrats’ victory in congressional elections, in which voters delivered a rebuke of President Trump in part for his immigration policies, gave them new hope.

Among the unusual victories by Democrats was the governorship of Texas, which went to Gina Hinojosa, a woman of Mexican-American descent, and the first Latina to lead the state.

“There might be a light at the end of the tunnel, a way for us to get in,” said Cesar Sandoval, a 47-year-old Nicaraguan who was deported from the US a few months ago. “We believe the Democrats will help us,” he added.

Local news footage showed officers positioned across a road, and the migrants ran as they were surrounded. About 40 were detained, according to reports from Tapachula.

The larger group of about 1,000 had crossed on Sunday evening without resistance. It is the third caravan to try to reach the US since September, the AFP said. The other two were broken up before leaving Chiapas, and their members were given temporary stay permits.

“As long as Trump remains president, the deportations will not stop,” said Ivan Porraz, a researcher at the College of the Southern Border.