The top Democratic and Republican presidential contenders will be invited to appear in nationally televised debates in California less than one week before "Super Tuesday," CNN, The Los Angeles Times, and Politico announced Friday.

The California debates, which will be broadcast on CNN, will take place in a delegate rich state that both Republican and Democratic White House hopefuls are mining for votes and campaign cash.

It will be the final time the candidates appear together on the same stage before February 5 when 23 states hold presidential nominating contests.

Republicans will appear at the Ronald Reagan Presidential Library in Simi Valley on January 30. Former first lady Nancy Reagan has personally informed candidates that they will be invited if they are frontrunners.

The California Democratic Party has sanctioned the Democratic debate, which will take place January 31 in Los Angeles. CNN, the Los Angeles Times, and Politico are organizing these historic events.

The three media organizations said candidates will be invited if they place in one of the top four spots in an early voting state, and receive at least 5 percent in either a California survey conducted by the organizers or any one of 10 nationally identified media sponsored polls in January.

Organizers will determine Democratic eligibility based upon the Democratic National Committee's early calendar schedule that includes Iowa, New Hampshire, Nevada and South Carolina. For Republicans, the list of possible contests includes: Iowa, Wyoming, New Hampshire, Michigan, Nevada, South Carolina, and Florida.

In addition to a CNN/Los Angeles Times/Politico survey of California voters, the media organizations said other polls they will use to determine eligibility include: CNN, Los Angeles Times/Bloomberg, The New York Times, CBS, USA Today/Gallup, NBC/Wall Street Journal, FOX/Opinion Dynamics, Washington Post/ABC, TIME, or Newsweek