President-elect Donald Trump sold all his shares in companies in June, his spokesman said Tuesday, a move that could have created a cash windfall as he ramped up to begin a costly general election presidential campaign that at the time he claimed he would personally support with “major contributions." The sell-off could help address conflict-of-interest worries about his stock portfolio, a sizable part of Trump’s financial life that was worth roughly as much as $40 million as of December 2015, a May disclosure filing shows. Trump’s stock portfolio, the May filing shows, included shares in