(CNN) - Neither Sens. Hillary Rodham Clinton and Barack Obama would commit Wednesday when asked in a debate if they would take the other as their running mate should they win the nomination.
Both candidates responded to the first question of the debate with smiles, prompting laughter from the audience. After a moment, Obama said he was happy to respond.
"I think it's premature at this point for us to talk about who vice presidential candidates will be, because we're still trying to determine who the nominee will be." he said.
Clinton echoed those comments. "I'm going to do everything I possibly can to make sure that one of us takes the oath of office next January," she said. "I think that has to be the overriding goal, whatever we have to do."
Each candidate said they thought the other was capable of winning the presidency.