The final day of the Democratic National Convention is underway in Philadelphia. 

Democratic nominee Hillary ClintonHillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE — the first female presidential nominee of a majority party in the U.S. — will headline the event. 

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Her daughter, Chelsea Clinton, will introduce her. Katy Perry is scheduled to perform before the prime-time speech. 

Gavel time is expected at 4:30 p.m. 

Watch the event live in the video above.