Salon writes, Virgina's governor race has become a reflection of the larger rift within in the Republican party, with the ultra-conservative presumptive nominee Ken Cuccinelli alienating mainstream Republicans and inviting a third-party challenge from the state's more moderate lieutenant governor. The National Journal reports: Republicans are viewing the governor’s race with increased urgency. Conservatives are turning against popular GOP Gov. Bob McDonnell, who was frequently mentioned as a 2016 presidential candidate. The state limits the governor to one term. Many of the party’s business allies…