Leila Medley is a Superdelegate in Missouri. She recently received a call from former President Bill Clinton.

"The first five minutes of the telephone call, I kept telling him he was not President Clinton," Medley said. "I'm not that impressed by personalities. I've been in this job too long."

There are currently 14 superdelegates in Missouri, and the Missouri Democratic Party State Committee will choose the final two this April. Many endorsed Obama or Clinton. However, they will not cast their votes until the Democratic Convention in August.

For example, Senator Claire McCaskill endorsed Obama, but that does not mean she has to vote for him at the Democratic Convention in Denver.

"If this primary fight goes all the way to the convention, these superdelegates will play a much larger role than they've ever played before," said Jack Cardetti of the Missouri Democratic Party.

This means that if neither Clinton nor Obama drops out of the race before August, these unplugged superdelegates could ultimately choose the democratic nominee in this November's election.

About 4000 delegates will go to the Democratic National Convention; 3200 delegates are awarded during primary season and 800 superdelegates. That means nearly one-fifth of all votes will be uncommitted at the convention. Those superdelegates can vote for whoever they want.

Medley said that although it sounds intense, there is not much pressure.

"I'm going to make up my mind in spite of the telephone calls, the e-mails and whatever happens," she said.

Medley said her pick was John Edwards.

"I'm not sure what will happen. I'm really kinda waiting for a signal from John Edwards as to which way he's going to move, because I believe when John Edwards moves to either Obama or Hillary, it will be because they are talking about his issues and his issues were my issues."

"I don't think that it's probable that both will still be campaigning come convention time, but it's certainly possible," Cardetti said.

The Republican Party also has pledged and unpledged delegates, but no superdelegates.