WATCH: President Donald Trump, Joe Biden have their first presidential debate

90-minute debate started at 9 p.m. in Cleveland, Ohio.

President Donald Trump and Democratic presidential candidate former Vice President Joe Biden exchange points during the first presidential debate Tuesday at Case Western University and Cleveland Clinic, in Cleveland, Ohio. (AP photo/Morry Gash, pool)

On Tuesday night, President Donald Trump and Democratic challenger Joe Biden took part in their first debate.

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The debate was held at Case Western Reserve University and Cleveland Clinic in Cleveland, Ohio.

The 90-minute, commercial-free program was divided into 15-minute topical segments opened with a question from the moderator.

Each candidate had two minutes to respond before the moderator facilitated discussion on the topic.

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