Tech billionaire Elon Musk publicly accused Microsoft co-founder Bill Gates of being a "liar" on social media platform X. Musk's comments were a reaction to a post downplaying Bill Gates' concerns that reduced funding to USAID could lead to loss of lives. Musk asserted that Gates was spreading a falsehood, suggesting Gates' non-government group could use its substantial funds to help save lives. This exchange follows a previous disagreement in May 2023 where Gates criticized Musk's stance on foreign aid cuts, warning of potential disease outbreaks.