In Iowa, Super PACs pumped millions of dollars into last-minute negative television ads. What influence will they have in the rest of the GOP primary season and beyond? Judy Woodruff discusses the myriad of super PACs with the Sunlight Foundation's…
As the race to raise campaign cash pushes on, some of Republican presidential hopeful Sen. John McCain's time to spend certain campaign funds is running down as the Republican National Convention approaches next month.
By PBS NewsHour
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