Delaware state Sen. Sarah McBride, elected this month as the first openly transgender member of Congress, called U.S. Rep. Nancy Mace’s attempts to keep her out of women’s facilities at the U.S. Capitol a distraction.

Republican Rep. Nancy Mace introduced legislation to ban trans women from using single-sex bathrooms on Capitol Hill, targeting Rep.-elect Sarah McBride, the first openly trans member of Congress. Here's what the bill says and what the reaction has been.