Two Democratic U.S. senators pressed Securities and Exchange Commission Chairman Paul Atkins on Monday to explain the abrupt resignation of the agency’s enforcement director and whether it was tied to the SEC’s pullback from cryptocurrency cases linked to Donald Trump, according to Bloomberg. 

Senator Richard Blumenthal of Connecticut sent Atkins a letter seeking records tied to the departure of Margaret “Meg” Ryan, who quit on March 16 after just over six months in the job, as well as documents related to enforcement actions against crypto companies and communications between the enforcement division and senior SEC officials, the news agency reported. 

Blumenthal said Ryan’s exit raised questions amid reports that senior agency leadership had intervened to block enforcement staff from pursuing certain crypto cases. Senator Elizabeth Warren of Massachusetts, the top Democrat on the Senate Banking Committee, also sought details on Ryan’s resignation and requested the SEC’s enforcement statistics for the past year, which Bloomberg reported have not yet been made public.

The scrutiny comes after the SEC, since Trump’s return to the White House, has dismissed or paused at least a dozen crypto-related cases, including lawsuits against Coinbase Global and Binance. Blumenthal specifically requested records related to potential enforcement actions involving crypto figures including Justin Sun and Binance co-founder Changpeng Zhao, known as CZ, according to the report. 

The SEC earlier this month ended its case against Sun, who had been accused of securities law violations and market manipulation. One firm affiliated with Sun agreed to pay $10 million to resolve the SEC’s allegations without admitting or denying the claims, the news agency said. 

Blumenthal also asked for communications between the SEC and members of the Trump family, records tied to settlements with crypto firms, and information on instances in which Ryan’s enforcement recommendations may have been overruled by the chairman’s office or other senior agency leaders. He additionally requested records relating to Zach Witkoff, chief executive of World Liberty, the Trump family’s cryptocurrency venture, according to the news outlet.

Read more at Bloomberg