Transcript for Joe Biden Nears Decision on 2016 Presidential Run
Meanwhile, the political world waiting for Joe Biden. There he is right there. Will he or won't he run for president. "The Washington post" jumped the gun last night, accidental headline, Biden to launch presidential campaign. Not so fast. It came down but our new ABC news/"washington post" poll is out right now and might give Biden supporters pause. It strongs a strong move from Hillary Clinton after that debate, sim slippage or Biden and ABC's Jonathan Karl has all the latest. Jon. Reporter: Hillary Clinton got a big boost coming out of that debate but it hasn't stopped the frenzy of speculation about whether or not Joe Biden will jump into the race. Man, I do enjoy it. How are you? Reporter: Wasn't quite a campaign speech but Joe Biden spoke passionately about tackling the threat of climate change. What are we doing? Reporter: The question remain, what is Biden doing? A source involved with Biden's deliberations on whether to run for president tells ABC news the vice president has not made a decision yet. He is busy calling supporters but some in Biden's circle now believe he may wait another week before announcing his plans. Well, Biden is still mum on 2016, he may be testing out some potential campaign lines. I'm not one of these guy, you know, let's go after the rich and the powerful and they're the problem. They're not a problem. Reporter: Is that a swipe at Bernie sanders' campaign against billionaires or listen to this one. I don't condoleezza rsider republicans enemies. Their friends. Is that a subtle shot at Hillary Clinton. Here's what she said. Report In addition to the NRA, the health insurance companies, the drug company, the Iranians, probably the republicans. Reporter: But after Clinton's strong performance at the first democratic debate, voters are split on whether Biden should run. 47% of democrats say they want Biden to get in the race, while 49% say he should stay out. One Biden confidant acknowledged the odds are against him starting so late, no money and no campaign organization. As for that Washington, D.C. Headline that briefly hit the paper's headline -- website, the reporter who wrote it, Paul kayna, wants everybody to know he had also prepared a Biden is not running story, as well. I'm sure he has. Okay. Thanks, Jon. Meanwhile, you know, Biden and his team say he's not paying attention to the polls as he makes this decision. No decision yet from the vice president but that new poll we have does show his position has weakened over the last month. Reporter: It's dramatic. Take a look now. This is where the race was a month ago. Hillary Clinton at 42%. Now these up to over 50%. Has a 31-point lead, a huge boost coming out of that debate. Leaving some of his supporters to think he's probably waited too long to do this. Okay, Jon Karl, thanks very much.
This transcript has been automatically generated and may not be 100% accurate.