Five U.S. senators say the Daughters of the American Revolution should only be for women and are proposing a bill that would amend the organization's federal charter.

The Daughters of the American Revolution, known as the DAR, failed to pass a resolution clarifying that membership is only for biological women, according to the senators.

“The Daughters of the American Revolution was founded by women for women, and its founders would be appalled that the organization is now allowing biological males to become members and undermine the legacy of real women who helped build our nation,” said U.S. Sen. Marsha Blackburn, R-Tenn, in a statement. “The Daughters of the American Revolution Membership Integrity Act would amend the DAR’s federal charter to stop the organization from erasing biological reality and ensure it is reserved for the real daughters of the American Revolution.”

The bill would add an amendment to the DAR's charter that limits membership to females, defining them as “a person who naturally has, had, will have, or would have but for a congenital anomaly or intentional or unintentional disruption, the reproductive system that produces, transports, and utilizes the large gamete (ova) for fertilization.”

Republican U.S. Sens. Katie Britt and Tommy Tuberville of Alabama, Mike Lee of Utah and Kevin Cramer of North Dakota are sponsoring the legislation with Blackburn.

"Alabama has over 4,000 members in the DAR, and they shouldn’t have to be putting up with this woke nonsense," Tuberville said in a statement.

The Center Square was unsuccessful prior to publication getting comment from the DAR.