Officials say that threatening letters -- one containing white powder -- were sent to two of Sen. John McCain's campaign offices.
More RNC Coverage | Veepstakes Interactive
Candidates: In Their Own Words
All candidates were given the chance to respond to a survey and record a video statement.
Some scheduled speakers at the Republican National Convention could be on John McCain's short list of running mate picks. So why are some conservatives nervous? More
The Democratic and Republican national conventions are right around the corner. Relieve your convention fever in our special sections.
More DNC Section | RNC Section
The Democratic National Convention is right around the corner, with the Republican National Convention on its heels. Get the inside scoop on both conventions in our special sections. More DNC Section | RNC Section
Tens of thousands of people lined up in St. Paul, Minn., for a chance to watch Sen. Barack Obama stake his claim as the Democratic nominee for president.
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Compare the presidential candidates as the 2008 White House race heats up. More
CNN Race To '08 Podcasts
The Democrats Meet In Convention In A Little Over Two Weeks. CNN Deputy Political Director Paul Steinhauser And CNN's John Lisk Talk About A Little Disagreement Over Hillary Clinton At The Convention. Listen
John McCain's Ad Comparing Barack Obama's Campaign To Paris Hilton Draws A Response From The Hotel Heiress. CNN Political Contributor Roland Martin And CNN's John Lisk Take A Look Listen
CNN Deputy Political Director Paul Steinhauser And Bill Caiaccio Discuss Why Vice President Dick Cheney Might Not Be At The Republican Convention. Listen
