<span style="color: #222222;">US President Donald Trump has announced a major staff overhaul, replacing his acting chief of staff Mick Mulvaney with Republican Representative Mark Meadows. </span><br />'' <br />'' <span style="color: #222222;">Trump announced the surprise reshuffle in a tweet last night, saying Mulvaney would become the U.S. special envoy for Northern Ireland.</span><br />'' <br />'' <span style="color: #222222;">The long-rumoured move comes at a time when the country is focused on the spreading coronavirus. Mulvaney had been leading the administration's inter-agency response to the virus until Trump designated Vice President Mike Pence to lead the whole-of-government effort more than a week ago. </span><br />'' <span style="color: #222222;"><br />''<br />''Trump has been pulling together a team of loyalists and allies ahead of what is expected to be a bitter re-election fight. But the timing threatens to exacerbate concerns about the government's ability to protect the nation from the virus.</span><br />