Here are the big takeaways from the first day of the convention. Biden had a difficult task in an emotionally tough moment. He understandably wanted to defend his own record while at the same time making the case for Harris — and striking a tone that was not too melancholy nor mawkish.

We fact-checked Biden's speech -- which included many claims we've heard before -- as well as the remarks of other speakers.

Here are some of the big names that took the stage to address the packed United Center, full of convention delegations from every state and territory of the United States. Permane