Jill Biden, the former vice president's wife, will be the headliner and is expected to provide a personal testament to the character of the man she married in 1977. The speech will likely emphasize Biden's personal decency, as a father and family member -- a theme that former first lady Michelle Obama, in her speech Monday, and a number of his 2020 primary rivals, frequently turn to when talking about Biden.

The first night of the convention focused on unity across ideological lines, while Tuesday's two-hours of programming will seek to bridge another divide: The generations. The old-guard of the Democratic Party -- in speeches by Senate Minority Leader Chuck Schumer of New York, former Secretary of State John Kerry and former President Bill Clinton -- will share the spotlight with Rep. Alexandria Ocasio Cortez of New York, the young progressive star who, despite being given only a minute to speak, could provide the night's most closely watched moment.

A range of Democrats, speaking on Biden's behalf on Monday night, attempted to highlight the unity inside the Democratic Party by hitting Trump on his handling of racial injustices, the coronavirus pandemic and his attacks on voting by mail. The night was capped by Obama, who excoriated Trump as the "wrong" president and noted that he was unable to win the popular vote four years earlier.

Democrats, in a moment of official business during a convention that has otherwise been more of a television show, will also hold their reimagined roll call vote on Tuesday, with party members appearing on video from each of the 57 states and territories to officially announce the delegates Biden and other Democrats received from their primary or caucus.

The convention to nominate Biden is unlike any other convention in history. Due to the coronavirus pandemic, and that infection and death rates in the United States remain high, the event is being held almost entirely virtually, making what would have been a raucous, in-person affair more like a two-hour television show for four nights.

Here's what to watch starting at 9 p.m. ET on Tuesday:

Biden, the husband and father

Jill Biden, the person who knows Joe Biden better than anyone else, will cap Tuesday night by getting personal.

When Jill Biden spoke on the campaign trail earlier this year, she often testified to her husband's humanity and decency, a theme that organizers expect to repeat throughout the convention.

But the former second lady of the United States is expected to bring an increasingly personal touch to that argument, closing out the second night of the convention by speaking at length about her husband of more than four decades.

"A commander in chief that you can trust. A leader who brings people together. A president that you can feel proud of," Jill Biden told voters ahead of the Iowa caucuses. "That's my husband, Joe Biden."

Even the location of Jill Biden's speech -- Brandywine High School in Wilmington, where she taught English in the 1990s -- hints at the personal nature of the remarks. Biden's teaching ca

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