Will Mitt Romney's selection of Rep. Paul Ryan (R-Wis.) as a running mate fundamentally change the direction of the presidential campaign? If so, to whose advantage?
Romney Picks Ryan
Lisa Lerer, covering the Romney campaign for Bloomberg News
Ryan Lizza, Washington correspondent for The New Yorker
Mark Barabak, political writer for the Los Angeles Times
Bill Whalen, research fellow at the Hoover Institution