Mexican authorities are trying to stop a caravan of migrants headed to the U.S. from entering Mexico, increasing police presence on the Guatemala border and meeting with the migrants.

Mexico’s ambassador to Guatemala met with members of the caravan just south of the Mexico-Guatemala border, warning them of how dangerous their journey is. But other Mexican leaders, including members of the opposition party PAN in the senate, see this as a response to pressure from the U.S., and they don't like it.

“Migrants shouldn't be cannon fodder for the U.S.' midterm elections,” said PAN Sen. Nadia Navarro Acevedo in a news conference.

And many experts point to Mexico’s Southern Border Plan along the Guatemala border as Mexico doing the U.S.’ border enforcement since 2014.

"I think that immigration policies in Mexico are a continuation of U.S. immigration policies," said Elisa Ortega Velásquez, an immigration law professor at the National Autonomous University of Mexico.

Secretary of State Mike Pompeo is scheduled to visit Mexico City on Friday.