Who Is Christine O'Donnell? The Delaware Senate Candidate's Most Controversial Positions (PHOTOS)

The staggering upset of former Delaware governor and nine-term congressman Mike Castle at the hands of a perpetual candidate with no actual legislating experience has everybody wondering: just who is Christine O'Donnell?

While her Tea Party and Sarah Palin ties may have recently catapulted O'Donnell into the national media spotlight, she's actually no stranger to being in the public eye, though prior to becoming the Republican Senate candidate for Delaware her coverage was largely self-determined.

O'Donnell made a series of appearances in the 1990s as the founder and president of the Savior's Alliance for Lifting the Truth, or SALT, as well as a spokeswoman for Concerned Women for America, positions that put her in front of Congress, Bill Maher and MTV cameras.

In the last couple years, O'Donnell has continued her occasional media appearances, popping up on high-profile cable news programs such as The O'Reilly Factor and Glenn Beck.

As reporters filter through her past clips, more will likely be uncovered about the Tea Party's latest darling, but here's what we can tell you now about who Christine O'Donnell has told America she is.

Christine O'Donnell's Greatest Hits