This is from a while ago, but it's amusing enough that it's worth posting anyway. The Lexis search string that the Justice Department used to weed out those pernicious potential Democrats:
[First name of a candidate]! and pre/2 [last name of a candidate] w/7 bush or gore or republican! or democrat! or charg! or accus! or criticiz! or blam! or defend! or iran contra or clinton or spotted owl or florida recount or sex! or controvers! or racis! or fraud! or investigat! or bankrupt! or layoff! or downsiz! or PNTR or NAFTA or outsourc! or indict! or enron or kerry or iraq or wmd! or arrest! or intox! or fired or sex! or racis! or intox! or slur! or arrest! or fired or controvers! or abortion! or gay! or homosexual! or gun! or firearm!Thank God you don't pay by the keyword.
(Via Slashdot, which points out that "sex" appears twice, so it must have been very important to them.)