Harry Reid faces one wild-card factor in November's election: None of the above. Nearly 11 percent of voters in Nevada's Democratic primary last week chose "none" over Reid, reflecting a sense of frustration within his own party over the Senate majority leader's performance.
And they could play a role in November if they're still angry at Reid. Moderate Republicans and independents also could throw their support for the "none" vote, possibly hurting Reid in a tight race with conservative tea party-backed candidate Sharron Angle.
"None of these candidates" has been a ballot option on statewide races since 1976.