President Trump has stood firmly on the side of the Venezuelan people. He correctly declared Juan Guaidó the legitimate leader and Nicolás Maduro an impostor, urged Venezuelans to resist the Maduro regime, and promised that America stands with them. The Trump administration has done a terrific job building a regional and global coalition against Mr. Maduro. The Organization of American States has come out firmly in support of Mr. Guaidó.

In a Feb. 18 Miami speech, Mr. Trump declared that he will stand against socialism and...