JD Vance booed by firefighter union audience after Walz’s appeal to same group  AxiosJD Vance reacts to being booed at firefighters’ union convention  CNNJ.D. Vance Booed by Entire Crowd During Dumpster Fire Speech  The New Republic‘What the hell do you have to lose?’ JD Vance pitches Trump as strongest choice for union voters at Boston event.  The Boston GlobeJD Vance booed during firefighters union speech in which he asked members what have Democrats ‘gotten you’?  Fox News