Delaware-elected representative Sarah McBride reacts to proposed transgender bathroom ban in the US Capitol

WASHINGTON, DC (WPVI) — Delaware-elected representative Sarah McBride responded to a new proposed measure to ban transgender women from using women’s restrooms in the U.S. Capitol on Monday.

McBride will be the first transgender member of Congress when she takes office in January.

South Carolina Republican Representative Nancy Mace recently introduced the measure.

If passed, members of the House, officers and staff would not be allowed to use restrooms designated for the opposite biological sex.

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“The sanctity of protecting women and standing up against the left’s systematic erasure of biological women starts here in the nation’s Capitol,” Mace wrote in a statement.

McBride later published on Xwhich states in part, “This is a blatant attempt by far-right extremists to distract from the fact that they have no real solutions to what Americans are facing.”

She noted the examples of housing, health care and child care as issues more important than “culture wars.”

Mace’s statement, and the bill expected to follow, is the latest chapter in the long battle over women’s restrooms in the Capitol.

The Women’s Reading Room in State Hall is now named after the former Rep. Lindy Boggs (mother of ABC legend Cokie Roberts) and was for many years a private area for women.

And in 2011, Speaker John Boehner directed the Capitol’s architect to build a women’s room off the House floor — in an old office that used to be for the congressman.

If Mace’s measure passed, its management would fall under the jurisdiction of the sergeant-at-arms, who is the top law enforcement officer in the House of Representatives.

ABC News contributed to this report.