Rep. Nancy Mace (R-S.C.) said Wednesday she is introducing a bill to ban transgender women from using women's bathrooms on all federal property. Why it matters: The South Carolina Republican is leaning into the controversy surrounding her efforts to restrict Rep-elect Sarah McBride (D-Del.

Republican Representative Nancy Mace placed a label reading "biological" above a sign for a women's bathroom in the U.S. Capitol, just weeks before the first openly transgender member of Congress is sworn in.

Republican Rep. Nancy Mace of South Carolina is defending a measure she recently introduced that would ban transgender women from women’s bathrooms in the U.S. Capitol.

Republican Rep. Nancy Mace put forth a resolution in an attempt to ban transgender women from using the U.S. Capitol's women's restrooms.

On one side of the Capitol, Republican Rep. Nancy Mace vowed to “stand in the way” of Democratic Rep.-elect Sarah McBride, the first out transgender woman elected to Congress, using women’s bathrooms in the US Capitol.

Republican Rep. Nancy Mace said Tuesday that the bill she introduced to ban transgender women from using women's restrooms at the U.S. Capitol was "absolutely" in response to Rep.-elect Sarah McBride's entering Congress.