There's a good, fairly thorough Q&A in this piece...
http://www.kstp.com/article/stories/S54282.shtml?cat=146White House E-Mail Raises Questions
The uproar over the firing of eight federal prosecutors has spawned a new controversy at the White House over questionable e-mail accounts and lost presidential records.
Aides to President Bush improperly used Republican Party-sponsored e-mail accounts for official business, the administration acknowledges, and lost an undetermined number of e-mails in the process.
The "mistake," as the White House is calling it, was discovered inadvertently through Congress’ ongoing probe of the administration’s dismissal of the U.S. attorneys.In the thousands of pages of documents the Justice Department has given to congressional investigators were e-mails disclosing that at least one White House official used his party-supplied, non-governmental e-mail account to help plan the firings.
But the issue potentially has broader implications than the outcry about the dismissals.snip//
Q: Why do Democrats care?
A: For one thing, they want to know if e-mails showing Jennings discussing the firings on his gwb43.com account are proof that the dismissals were not solely performance-based, as the administration has been saying, but done as retribution against prosecutors who either did not pursue Democrats aggressively enough or they pursued Republicans too aggressively.
Then there is the broader suspicion.
The White House essentially says the loss of e-mails dealing with official business, as well as the improper use of the political accounts, was an honest mistake. The White House mostly places the blame on a policy it said left staffers too ill-informed about the records act’s requirements to make sure e-mails were properly archived.
The White House also says staffers probably conducted official business via the political accounts "out of an abundance of caution" regarding the Hatch Act or to avoid the inconvenience of switching back and forth. But it won’t say whether anyone deliberately used the accounts to keep discussions about sensitive official issues from being preserved _ and eventually publicly released _ through the White House archive system. Stanzel wouldn’t even say whether the White House review aims to answer this question.
Democrats believe it’s unlikely that people working for a 6-year-old administration would not fully understand their obligations to preserve presidential materials. They want to know if the e-mails were deliberately funneled through the RNC system and deleted to shield certain things from the public eye.
Democratic suspicion increased Thursday when Rep. Henry A. Waxman, the California Democrat who is chairman of a House committee looking into the use of political e-mail accounts, reported on a briefing he received from RNC lawyer Rob Kelner. Waxman said he was told the RNC in 2005 shut off the ability of Rove _ and only Rove _ to delete his own e-mails.
Waxman said one factor was "the presence of investigative or discovery requests or other legal concerns." At the time, special prosecutor Patrick J. Fitzgerald was investigating the leak of the name of a CIA. officer, a probe in which Rove was a key figure. Rove’s attorney, Robert Luskin, said, "There’s never been any suggestion that Fitzgerald had anything less than a complete record" on Rove.
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