Andrés Manuel López Obrador

In 2018, Mexico saw more than 20,000 gun-related homicides. American firearms are "really important to these criminal organizations, who stay in business by the threat of violence," said retired DEA agent Jack Riley.

"Our many companies and jobs that have been foolishly allowed to move South of the Border, will be brought back into the United States through taxation (Tariffs)," the president wrote.

Mexico's plan points to the failure of the decades-long international war on drugs.

Andrés Manuel López Obrador said that immigration issues along the southern U.S. border were not the fault of Mexico.

"I have sent a letter to the king of Spain and another to the pope calling for a full account of the abuses and urging them to apologize to the indigenous peoples," Mexico's president said in a video posted Monday.

In total, the U.S. has pledged $5.8 billion in aid and investment for Central America, while another $4.8 billion will go to southern Mexico.

"The effects caused by marijuana do not justify an absolute prohibition on its consumption," the court ruled.

According to Andrés Manuel López Obrador, the "general development plan" will require some $30 billion in combined investment between the U.S., Mexico and Canada.

As the country battles record homicide rates, it remains unclear who was behind the disappearance of 43 students in 2014.

The populist politician said 20 unarmed men and women "are going to take care of me."

Mexican President-elect Andrés Manuel López Obrador said his leftist government will not allow Donald Trump's multibillion-dollar border wall plans or U.S. threats.

As President-elect Andrés Manuel López Obrador considers the legalization of drugs in Mexico, he has given incoming Interior Minister Olga Sanchez Cordero a free hand.

Andés Manuel López Obrador's announcement signals a new initiative to protect Mexico's national boundaries.

"I don't want to go around surrounded by bodyguards…I want the people to look after me," the president-elect has previously said.

López Obrador's conciliatory tone follows more fiery rhetoric on the campaign trail.

Will the U.S. president have a better relationship with López Obrador than he had with his predecessor?

In the presidential race, former Mexico City Mayor Andrés Manuel López Obrador, 64, has come out as the clear front-runner, with recent polls showing he has the support of 51 to 54 percent of the electorate.

More than 130 politicians have been killed since the start of the biggest election season in Mexico's history, which began nine months ago.

With more than 18,000 positions up for grabs at the local and federal levels across Mexico, the polls have been hailed as the largest ever in the country's history.

Since September, at least 110 electoral candidates have been killed in the country.

Jaime Rodríguez might be trailing in Mexico's presidential polls, but he had a novel suggestion to combat crime and corruption during the first televised debate.

The latest poll shows the leader of the left-wing Morena Party has the support of 42 percent of the electorate.

Presidential hopeful Andrés Manuel López Obrador vows to stand up to the "bully" to the north.

Andres Manuel Lopez Obrador hopes the law will "protect immigrants from the harassment."