Presidential Campaign: What's next?

Now that heavy hitters Obama, Clinton and Richardson have entered the race, who and what are next?

Folks in Nevada are getting a jump start on everyone. Labor unions there are hosting a forum for Democratic candidates on February 23 in Carson City. Remember Nevada is busting up the stranglehold New Hampshire and Iowa voters have had in the first round of primary and caucus voting. Iowa will go first, followed by Nevada five days later, then New Hampshire.

To get ready, Nevada Democrats are setting up five events throughout the year for candidates to discuss the issues. A couple of Nevada newspaper reporters talked about what's happening thre on NPR last week.

CNN and WMUR will hold back-to-back debates in New Hampshire in April. MSNBC follows up with a Democratic event in South Carolina. Fox News hosts Republicans in May.