Americans may need to be wary of foreign influence in the next elections, and this time we don’t mean Russia or China. Mexican President Andrés Manuel López Obrador said he is willing to influence the rhetoric surrounding the U.S. midterm elections if any candidate were to speak poorly about Mexicans.

According to The Daily Caller:

“We are not going to allow Mexican migrants to be questioned in campaigns to supposedly win votes, we do not accept xenophobia, we do not accept racism,” he said at a May 20 press conference, referencing the U.S. November elections. He noted that his policy is “non-intervention and self-determination.”

“And if a party, candidates, thinking that if they speak ill of the Mexican they are going to get votes, well, from here we are going to denounce those facts so that our countrymen over there know who is who,” he added, warning that there are over 40 million Mexicans in the U.S.

In April, the Mexican president told Americans of Mexican and Latino descent to not vote for parties or candidates that “mistreat” Mexico or other countries in Latin America and the Caribbean, according to Reuters.

“When someone goes too far and causes offence, we’ll call them out so that our countrymen help us. Because there are 40 million of us,” he added in April. “Don’t forget your origins.”

López Obrador announced Monday he would not be attending the Summit of the Americas, an event hosted by Biden and focusing on the migration crisis.