The Republican speaker of the US House of Representatives voiced support Wednesday for banning a newly elected transgender woman from using women's restrooms in the legislature.

Rep.-elect Sarah McBride (D-Del.), set to be the nation’s first openly transgender member of Congress when she takes office in January, said she will comply with a policy instituted Wednesday by

We’re not going to have men in women’s bathrooms,' House Speaker Mike Johnson declares after first transgender person is elected to Congress.

The Republican-backed ban was distressing enough for many transgender people. Then came Rep.-elect Sarah McBride’s acquiescence to the new rule.

US House Speaker Mike Johnson has backed plans to ban transgender women from using female bathrooms on Capitol Hill. “Women deserve women’s only spaces,” Johnson said in a statement on Wednesday. He said the new rule would be enforceable in the Capitol and in House office buildings.

After Sarah McBride of Delaware became the first openly trans woman elected to Congress, House Speaker Mike Johnson said restrooms in Congress are "reserved for individuals of that biological sex." NBC News' Ryan Nobles reports.

Representative-elect Sarah McBride (D-Del.) said she would comply with the anti-transgender bathroom rules that House Speaker Mike Johnson (R-La.) announced Wednesday because, in her words, “I’m not here to fight about bathrooms.