Wednesday, June 4, 2008 | 4:59 p.m.
This week the Rio became the third megaresort where casino dealers have filed a petition for an election to organize through the Transport Workers Union.
Dealers previously won the right to be represented by the Transport Workers Union at Wynn Las Vegas and Caesars Palace but have yet to sign labor contracts there.
And there may be still more organizing efforts to come. At least seven Web sites are urging dealers to organize at Strip casinos. What with layoffs, slowed business and the private equity buyout of Harrah's Entertainment, workers fear for their jobs.