Venezuelan opposition leader Juan Guaidó rallied Venezuelan expats on Saturday at the Miami Airport Convention Center, an event that marked the end of a two-week world tour that included Europe and Canada. The aim was to rekindle international support for his campaign to oust authoritarian Venezuelan President Nicolás Maduro, which started a year ago. WLRN’s Tim Padgett was with Guaidó on Saturday. Padgett spoke with WLRN’s Luis Hernandez about whether Guaidó’s movement still has a future – and