Donald Trump heralded his record on workers, vowing to be a voice for the working-class on the campaign trail, but unions are not convinced and worry about rising trade tensions in his second presidential term. International Trade Union Confederation chief Luc Triangle says Trump's previous years suggested he couldn't be trusted in office in an interview with AFP. "I don't believe him knowing what he did in the first four years. So he was not the president of workers," Triangle says at the annual gathering of the world's elites began in the Swiss Alpine resort of Davos. IMAGES AND SOUNDBITES