First on CNN: US Capitol Police subpoenaed for information on threats to Rep. Cori Bush as part of grand jury probe

US Capitol Police have received a subpoena in the grand jury investigation into Rep. Cori Bush, sources familiar with the matter told CNN.

The subpoena is seeking materials related to threats directed toward the Missouri Democrat and communications from her office, her campaign, or her husband with Capitol Police, one of the sources said. A separate source familiar with the matter told CNN the previous subpoena to the House sergeant at arms also requested information about any threats and incidents involving Bush.

A federal grand jury in Washington, DC, has been asking questions about Bush’s security and the potential misuse of funds in recent months, according to people familiar with the investigation, and the probe has included outreach to other witnesses in addition to the earlier subpoenaed House sergeant at arms and Capitol Police.

Federal investigators also have reached out to other potential witnesses, including some involved in the personal security business, several sources said.

The investigation is still in a fledgling phase, some of the sources said, and Bush hasn’t been charged with any crime.

A lawyer for Bush did not respond to CNN’s request for comment.

The federal investigative activity around Bush adds to scrutiny of the congresswoman, a member of the House Judiciary Committee.

Last year, the conservative group Foundation for Accountability and Civic Trust filed a complaint with the Federal Election Commission saying Bush may have misused campaign funds by paying her now-husband Cortney Merritts, more than $60,000 for security services during her 2022 campaign. Merritts and Bush married in February 2023.

FEC filings show that from January 19, 2023, through April 3, 2023, Bush’s campaign paid Merritts…