What to watch for on Day 3 of the Dem convention
© Greg Nash
Obama will be under pressure to unify Democrats and assuage their anxieties after the abrupt resignation of Democratic National Committee (DNC) Chairwoman Debbie Wasserman Schultz just five days earlier. 
The president will be greeted Wednesday by a far more united party than the one that first gathered Monday. Clinton has since been officially nominated to become the Democratic nominee — with the help of her fierce primary rival, Sen. Bernie (I-Vt.). 
Still, Obama will be playing referee to Sanders supporters, who are still squirming over the idea of backing Clinton. 
It will be Obama’s fourth straight convention, and it will be a crucial one. The president will be defending the White House — and his legacy — from GOP nominee Donald TrumpDonald TrumpWhat blue wave? A close look at Texas today tells of a different story Democrats go down to the wire with Manchin Trump's former bodyguard investigated in NY prosectors' probe: report MORE, who first lifted his political profile by questioning Obama’s citizenship.
The Clinton camp will also deploy Biden, a populist favorite of Democratic voters who flirted with his own bid for president, to help reach swing voters.
A champion of unions, Biden could be an important tool in helping to deliver working-class voters Trump is courting.  
Already, Biden has seized his chance in Philadelphia to downplay divisions within the Democratic Party. In the arena on Tuesday, Biden said: “I do not think there’s any fracture in the party.”


Clinton’s vice presidential pick will face his brightest spotlight yet Wednesday night: speaking before thousands of delegates while sharing a stage with Obama.
Kaine will have a chance to introduce himself to the national Democratic Party after a long, but relatively low-key, career in Virginia politics and a stint as Democratic National Committee chairman.
Kaine has excited many longtime Democrats for his ability to broaden the party’s base — particularly his ability to speak Spanish and his civil rights work.
But Kaine has also drawn criticism from some liberals, particularly Sanders backers, for his past support for trade deals and Wall Street deregulation.
The Clinton campaign has sought to portray Kaine as a “lifelong fighter for progressive causes.”


Democrats are hoping to avert more drama Wednesday after a raucous start that involved long protest marches downtown and loud opposition on the floor.  
There were fewer jeers and boos on Tuesday, when Clinton officially clinched the nomination with the help of Sanders.
Still, dozens of Sanders supporters staged protests in and around the media tents directly across from the convention to make their point. The spectacle lasted for hours, though it remained peaceful. 
But speakers will also face the added challenge of keeping enthusiasm up without the staunchest Sanders supporters. 


Clinton will take her gun reform message to prime-time Wednesday, a shift that some are calling a gamble for the Democrats.
Gun control has emerged as one of the most prominent pillars of Clinton's 2016 platform, partly because she used it to draw a contrast with Sanders and his mixed voting record on the issue.
Clinton will look to make good on the promise to keep the issue high on her agenda on Wednesday, with speakers such as Erica Smegielski, the daughter of Sandy Hook Elementary School principal Dawn Hochsprung, who was gunned down in 2012. Two survivors of the Charleston, S.C., church shooting, Felicia Sanders and Polly Sheppard, will also address the convention.
The issue is particularly emotional for Obama, whose two terms have been punctuated by horrific shootings in schools, churches, movie theaters and nightclubs. 
Democrats will also get a lift from former New York City Mayor Michael Bloomberg, who founded a nonprofit group to advocate for gun control called Everytown for Gun Safety.