Vivek Ramaswamy, the fast-talking, Ivy League-educated, telegenic political phenom thrills Republican voters, infuriates his presidential primary opponents and styles himself as an entrepreneurial “scientist” with a glittering business background and hundreds of millions of dollars to dump into his out-of-nowhere campaign for the White House. But a review of Ramaswamy’s career – marked by the hyping of a failed Alzheimer's drug, giant payouts when other investors got burned, lawsuits alleging pressure to break securities laws and more – reveals a businessperson whose true liquid net worth is unknown and whose track record as a successful entrepreneur shows limited value creation...