Whistle-Blower ‘Must Testify,’ Trump Says: Impeachment Update

(Bloomberg) -- House committees investigating President Donald Trump’s interactions with Ukraine were set to hear Monday from former National Security Council Russia expert Fiona Hill, who left the administration last summer.Here are the latest developments:Former Trump Aide Hill Arrives for Testimony (9:14 a.m.)Hill arrived at the Capitol to give closed-door testimony Monday to the three House committees leading the impeachment inquiry focusing on Trump’s interactions with Ukraine.H