Stephen A. Schwarzman — chairman, CEO and co-founder of Blackstone, the private equity and real estate giant — tells Axios he will support Donald Trump as a "vote for change." Schwarzman said Friday that he plans to donate to Trump and various Republican Senate candidates. Why it matters: The endorsement gives Trump access to a potent network of Republican donors Schwarzman has cultivated. Trump also could get a new look from some business leaders who have been reluctant to back him...