It’s long past time for Fox News to declare themselves a political affiliate of the far right wing of the Republican Party. This is ridiculous.

With Sarah Palin, Newt Gingrich, Rick Santorum and Mike Huckabee all making moves indicating they may run for president, their common employer is facing a question that hasn’t been asked before: How does a news organization cover White House hopefuls when so many are on the payroll?

As Fox’s popularity grows among conservatives, the presence of four potentially serious Republican candidates as paid contributors is beginning to frustrate competitors of the network, figures within its own news division and rivals of what some GOP insiders have begun calling “the Fox candidates.”

With the exception of Mitt Romney, Fox now has deals with every major potential Republican presidential candidate not currently in elected office.

The matter is of no small consequence, since it’s uncertain how other news organizations can cover the early stages of the presidential race when some of the main GOP contenders are contractually forbidden to appear on any TV network besides Fox.