5:36 p.m. ET: From the DNC floor… ABC News' Cecilia Vega interviews DJ Cassidy:

Credit: Melinda Arons/ABC

4:02 p.m. ET: ABC News has learned that there will be no balloon drop tomorrow night at the Democratic National Convention.

ABC's Michael Falcone reports that one convention official assured, "It will be festive."

They were all about the balloon drop at the Republican National Convention, were delegates appeared to be drowning in balloons after Mitt Romney's speech. "Nightline" caught up with the RNC's balloon boss, the man whose job it is to get those suckers blown up and placed correctly, last week. Watch what happened:

3:13 p.m. ET: "Nightline" senior Melinda Arons tweets from the Democratic National Convention:

Credit: Melinda Arons/Twitter

2:22 p.m. ET: Blast from the past…

ABC News' Michael Falcone reports from Charlotte, N.C.:

This could get awkward.

Rabbi David Wolpe of Los Angeles' Sinai Temple, where Monica Lewinsky and her family were congregation members for decades and where Lewinsky attended religious school, is scheduled to deliver the benediction at the Democratic National Convention tonight - not long after Bill Clinton speaks.

Read his full story HERE

Credit: RJ Capak/WireImage/Getty Images

12:01 p.m. ET: BREAKING: A powerful, magnitude-7.6 earthquake shook Costa Rica and a wide swath of Central America on Wednesday, collapsing some houses, blocking highways and causing panic, but officials said there was only one reported death, from a heart attack.

Read the full story HERE

Credit: ABC News

10:45 a.m. ET: Now that she has given birth to her first child, Nicole "Snooki" Polizzi is talking about her new life as a mom, how the name of her newborn son was chosen, and the end of her partying days.

"It's a different kind of love that I never felt before," Polizzi told People said of her son, Lorenzo Dominic.

Read the full story HERE.

Credit: Bill McCay/WireImage/Getty Images

"Nightline" caught up with Snooki a few months before she gave birth to ask her about how she was handling the pregnancy, what she was willing to give up for the baby and if she was ashamed of her partying past. Watch what happened:

9:50 a.m. ET: The Democrats kicked off their national convention last night with a bang.

First lady Michelle Obama gave an emotional speech that said President Obama knows what it is to struggle, and for him the economic hardships facing the country "aren't political, they're personal." Read the full story HERE.

And then ABC's John Quinones was behind the scenes for "Nightline" as Julian Castro, the 37-year-old mayor of San Antonio, Texas and the first Latino to speak at the party's convention, prepared for his historic keynote address:

And to bring it all together, ABC News contributors George Will and Donna Brazile give their take on how the speakers did: