Presumptive Democratic nominee Hillary ClintonHillary Diane Rodham ClintonA path to climate, economic and environmental justice is finally on the horizon Polling misfired in 2020 — and that's a lesson for journalists and pundits Biden flexes presidential muscle on campaign trail with Virginia's McAuliffe MORE on Sunday made a surprise appearance at New York City's annual gay pride parade.

The candidate reportedly was greeted by New York City Mayor Bill de Blasio, New York Gov. Andrew Cuomo and Rev. Al Sharpton.

People could be heard shouting and cheering around the candidate as she walked through the parade.

The parade on Sunday began with a moment of silence for the victims of the Orlando, Fla., nightclub attack that left 49 people dead and many more wounded, ABC News reported. People lined up on the streets waving rainbow flags. 

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Clinton tweeted on Sunday a message of support to the LGBT community.

"Every LGBT American deserves to live, work and marry free from discrimination or violence," she tweeted.

As gay pride celebrations went on throughout the country, many other politicians joined in the festivities. Californians Minority Leader Nancy Pelosi and Rep. Eric Swalwell (D) participated in a parade in San Francisco.