Uber shareholder lashes out at Benchmark in new letter

Sam Jayne / Axios

Venture capitalist and Uber investor Shervin Pishevar has ramped up his battle with Benchmark Capital, based on a new letter obtained by Axios.

Quick history: Benchmark last week sued former Uber CEO Travis Kalanick for fraud, in an effort to get him booted from the company's board of directors. Pishevar and two other Uber shareholders launched a petition to get Benchmark to instead step down from the board and to divest enough of its shares to remove its board appointment rights. Benchmark replied with its own open letter to Uber employees, while Kalanick also has begun fighting back.