CHICAGO (CBS) — Illinois U.S. Senator Tammy Duckworth is trying to root out any current or retired military members who were part of the U.S. Capitol assault last Wednesday.

She said there are reports some played a role in the siege. Duckworth wants the Acting U.S. Secretary of Defense to investigate.

READ MORE: Veteran Falls Victim To Phishing Scam, Loses $19,000 From Chase Bank Account Meant For Daughter's College Education

In a letter to Christopher Miller, she said:

READ MORE: 'Makes Americans More Free': Dana Zzyym Issued 1st U.S. Passport With Gender X Designation

“If accurate, it would be a disgraceful insult to the vast majority of servicemembers who honorably serve our nation…”

MORE NEWS: Joel Quenneville To Meet With NHL Commissioner Gary Bettman Over Handling Of Blackhawks Sexual Assault Scandal

Also From CBS Chicago: