"We do not agree with offering congratulations in advance," Mexican President Andres Manuel Lopez Obrador said on Wednesday.
Mexico's leftist president is helping Trump's immigration policies, in exchange for complete American non-intervention in his own affairs—something that may not be as easy under Biden.
The agreement followed talks held by Mexican president Andrés Manuel López Obrador with U.S. officials earlier this month.
Mexican President Andres Manuel Lopez Obrador reignited demands this week for either clarity or an apology over a botched Obama-era United States gun-running operation dubbed "Fast and Furious."
Trump said the United States will cut its oil production by a quarter-million barrels of crude oil per day to help Mexico meet OPEC's demands for a deal to bolster global petroleum prices.
"No more rescues in the style of the neoliberal period, that provided for banks, big companies," President Andrés Manuel López Obrador said.
Pete Buttigieg was the only one of three Democratic presidential candidates who knew the name of Mexico's president in interviews with Spanish-language network Telemundo Thursday.
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.
"The effects caused by marijuana do not justify an absolute prohibition on its consumption," the court ruled.
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."
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.
López Obrador's conciliatory tone follows more fiery rhetoric on the campaign trail.
More than 130 politicians have been killed since the start of the biggest election season in Mexico's history, which began nine months ago.
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.