Comment: More evidence that Ron Paul is the only viable candidate to challenge Mitt Romney.

A federal judge has ruled that Rick Perry and three other Republican presidential candidates will not be added to Virginia’s primary ballot.

District Court Judge John Gibney Jr. rejected their requests, arguing that they filed their challenges to Virginia’s stringent ballot requirements too late.

“They played the game, they lost, and then they complained about the rules,” he said.

The decision means — for now, anyway — that Perry, Rick Santorum, Jon Huntsman and Newt Gingrich will be left off the March 6 ballot after failing to meet a state requirement to collect 10,000 signatures in support of their respective campaigns.