campaign 2012 and discussion about the influence of unregulated money in this year's campaign, with bob biersakrom the center for responsive politics and politico reporter kim barker. >> for a countdown to the convention, this continues until our gavel to gavel coverage of the republican convention starting monday at 2:00 p.m. eastern and the democratic convention starting september 4th. every minute, every speech, live. on c-span. c-span radio. and online at c-span.org. featured speakers include former florida governor jeb bush this monday night, new jersey governor chris christie with keynote address tuesday, paul ryan accepts his vice presidential nomination wednesday and thursday night, presidential candidate mitt romney. these are online hubs to watch video feeds, share clips, add comments and connect with our viewers, at c-span.org/campaign 2012. >> astronaut neil armstrong died today from complications resulting from recent heart surgery. he was 82 years old. in july 2009, perform armstrong spoke at an event at the smithsonian air and space museum in washington, commemorating the first m