Watch: US President Barack Obama Officially Endorses Hillary Clinton

United States President Barack Obama endorsed Hillary Clinton through the video after meeting Vermont Senator Bernie Sanders who has been battling Mrs Clinton for the nomination.

The video was tweeted by Mrs Clinton in which President Obama said, Hillary is the most qualified person ever for the role of president. Mr Obama and Mrs Clinton will be starting a campaign together. The endorsement video started as "Tens of millions of Americans made their voices heard. Today I just want to add mine," Obama said in a video endorsement. "I'm with her."

"I want those of you who've been with me from the beginning of this incredible journey to be the first to know that 'I'm with Her.' I am fired up and cannot wait to get out there and campaign for Hillary," Mr Obama said in the video.

Watch the video here: