The US President-elect Donald Trump has announced that he is leaving business in total to focus on Presidency and avoid perceived conflicts of interest. <br/><br/>Mr Trump said he would be expanding on his plans at a press conference with his children next month. He previously dismissed concerns over potential conflicts between his businesses and the Presidency.<br/><br/>Meanwhile, former Goldman Sachs executive Steven Mnuchin confirmed he had been picked as Treasury Secretary. Mr Mnuchin, who was Trump's former campaign Finance Director, also said billionaire investor Wilbur Ross had been chosen for Commerce Secretary.