AVA- Trump made the remarks while hosting Fabiana Rosales, the wife of Venezuelan National Assembly President Juan Guaido, at the White House.
"We are with you 100 percent," Trump told Rosales before reporters.
Guaido declared himself interim president of the country in January amid an economic crisis in the country.
The U.S. was the first nation to recognize Guaido as Venezuela's leader. Dozens of nations, including most in Latin America, have followed suit.
But Venezuelan President Nicolas Maduro, who is strongly supported by Russia, has refused to cede power, instead insisting he is the target of a U.S.-orchestrated coup.