Navy sailor appeared on stage at partisan GOP convention

Washington — An active-duty Navy sailor who spent nearly a year imprisoned in Venezuela before being freed in a prisoner exchange negotiated by the Trump administration appeared on stage at the Republican National Committee's midterm convention on Thursday. His appearance at the event, holding a sign before the partisan crowd, raises questions about the military's consistency in enforcing restrictions intended to keep active-duty troops out of politics. Petty Officer 2nd Class Wilbert Joseph Cas…