Sarah McBride makes history as first transgender woman to become a senator in the US

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Sarah McBride is to become the first transgender state senator in the US after she won her race in Delaware.

She beat Republican Steve Washington to take over the seat from Democrat Harris McDowell, who is standing down.

Ms McBride, 30, has worked as the press secretary of LGBTQ advocacy group the Human Rights Campaign and was a trainee in President Obama's White House.

She is one of a handful of candidates who has made history in a nail-biting night across the country.

"I hope tonight shows an LGBTQ kid that our democracy is big enough for them, too," Ms McBride tweeted after her win.