In June I wrote "Obama,Acorn, and Voter Fraud" concerning the largest case of voter fraud in Washington State.  Obama used to be a legal representative and a "community organizer" for Acorn.  Besides Washington, Acorn has been linked to voter fraud in Ohio,Missouri,Pennsylvania and 11 other states.
Now Acorn offices in Las Vegas, Nevada   have been raided by law enforcement agencies investigating voter fraud on 10/07/2008.  The task force was led by the office of the Nevada Secretary of State, a Democrat.  They seized computer records and documents.  Acorn has been blamed  for submitting many voter registrations with false and duplicate names including names of ex Dallas Cowboy players.
I see a pattern of corruption here.  Republicans have clashed with Acorn for awhile.  In 1986 twelve members of Acorn were convicted for voter fraud in Missouri.  Republicans successfully blocked a Democratic attempt to give Acorn $20 billion from the $700 billion bailout package recently passed.  On the same day as the Las Vegas offices were raided, Indiana Republicans complained that Acorn had submitted hundreds of bad voter applications, voters who had moved died or were unqualified.  Yet the liberal media makes little of these accusations and this clear pattern of fraud.  It is as if the mainstream media does not want to report this and only does so reluctantly.