Former President Donald Trump has taken aim at Senator Bill Cassidy, calling him 'disloyal' in the lead-up to the Louisiana Republican primary.
Cassidy, who chairs the Senate committee overseeing health policy, is facing a tough battle to retain his seat as he competes in the primary scheduled for Saturday.
Trump's endorsement of Cassidy's challenger adds another layer of complexity to an already contentious race, highlighting the divisions within the Republican Party.