The Republican National Committee and chairman of George W. Bush’s 2004 campaign have been directed by a senior Democratic lawmaker to preserve all e-mails related to White House business because they might be relevant to multiple congressional investigations.

Henry Waxman, Democratic chairman of the House oversight committee, said in letters to the RNC and the former head of the 2004 Bush/Cheney campaign that congressional investigations revealed that White House officials had used non-governmental e-mail accounts controlled by the RNC and the 2004 campaign for business.