CHARLESTON, W.Va. (AP) \u2014 The U.S. attorney for West Virginia's southern district is stepping down.\r\n\r\nU.S. Attorney Mike Stuart announced Friday he will resign effective Feb 28. The move will allow President Joe Biden to appoint a successor.\r\n\r\nNominated by former President Donald Trump, Stuart began his term as U.S. attorney in January 2018.\r\n\r\nStuart served as chairman of the West Virginia Republican Party from 2010 to 2012. He led Trump's state campaign for president in 2016.\r\n\r\nStuart said during his time as U.S. attorney he "remained laser-focused" on the opioid epidemic. He touted his office's participation in the dismantling of multi-state drug distribution networks.\r\n\r\nThe southern district serves 23 of West Virginia's 55 counties.