Warren Steps Into Repo Turmoil, Asks Mnuchin for Answers

(Bloomberg) -- U.S. Senator Elizabeth Warren waded into last month’s turmoil in short-term funding markets, warning Treasury Secretary Steven Mnuchin not to use the incident as a rationale for weakening post-financial crisis regulations.Warren, a front-runner in the race to challenge Donald Trump in the 2020 U.S. presidential election, sent a letter to the Treasury on Friday. In it, she sought Mnuchin’s views on what triggered the spike in rates for repurchase agreements and expresse