Trump replaces chief of staff with immigration hardliner Stephen Miller

President Donald Trump announced Friday he will replace Chief of Staff Susie Wiles with Stephen Miller, a hardline immigration adviser, following Republican losses in this week's midterm elections. The change takes effect Monday. Miller, who also serves as homeland security advisor, has been a key driver of Trump's mass deportation program, which has included violent raids by masked agents. Wiles, the first female chief of staff, will move to Trump's political operation. The shake-up comes after Democrats gained control of Congress in Tuesday's elections, with voters frustrated by the economy and the war with Iran. Miller, 41, has been a close Trump aide for over a decade and faced criticism after immigration agents fatally shot two protesters in Minneapolis in January.