Rich Griffin, a member of the National Association of Letter Carriers, knocks on the door of a registered voter and union member while canvassing for Nevada Sen. Harry Reid and Rep. Dina Titus Friday,... more 
Rich Griffin, a member of the National Association of Letter Carriers, knocks on the door of a registered voter and union member while canvassing for Nevada Sen. Harry Reid and Rep. Dina Titus Friday, Oct. 15, 2010, in Las Vegas. Griffin has taken a leave of absence without pay from his job with the U.S. Postal Service to work temporarily for Labor 2010, an AFL-CIO affiliate. Early voting begins Saturday in Nevada. less 
1 / 1
Associated Press | Photo By Julie Jacobson
Fri, Oct 15, 2010 9:49 PM EDT