Hillary Clinton marches in New York City Pride Parade

America’s possible next president surprised New Yorkers on Sunday by joining them in the city’s 46th LGBT Pride parade.

Hillary Clinton, the presumptive presidential candidate for the Democratic Party, walked a portion of the route along with New York Governor Andrew Cuomo, New York City Mayor Bill de Blasio and the Reverend Al Sharpton.

She smiled and waved to the enthusiastic crowd who lined the streets in a show of support for the LGBT community following the recent Orlando massacre.

Clinton walked for about 15 minutes in the Greenwich Village neighbourhood, the site of the Stonewall riots; recently named a national monument by President Clinton.

This was not her first New York City Pride; she previously marched in the parade in 2000 and 2006.

Clinton, who is a supporter of LGBT rights and marriage equality, has been backed as a presidential candidate by the Human Rights Campaign, America’s largest LGBT group.

Around 32,000 people marched in Sunday’s parade, said to be the biggest in the city’s history. Tens of thousands more lined the streets to watch the procession.

The event began with a moment of silence for the victims of the Orlando killings. The lead float for the Stonewall Inn featured the owner of Pulse nightclub, Barbara Poma, riding atop.