Vicente Fox served as Mexico’s president for six years, taking office in December 2000 and forging a strong bond with President George W. Bush. Today, during a visit to Washington, D.C., Fox offered advice to the 2016 crop of candidates about the importance of a close relationship with Mexico.

In an interview with The Daily Signal, Fox said candidates running for president should focus on what he described as income inequality in the United States, making NAFTA work better and having a strong foreign policy.

The former Mexican president also talked about how the United States handles immigration challenges with Mexico and what he believes should be done.

And finally, on the Obama administration’s controversial move to ease diplomatic relations with Cuba, Fox weighed in on the communist nation’s status as a state sponsor of terrorism.