Joe Biden's Potential Run Looms Over 2016 Presidential Race

ABC News' Devin Dwyer, Matt Dowd report the latest news on the 2016 presidential campaign trail.
3:41 | 10/17/15

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Transcript for Joe Biden's Potential Run Looms Over 2016 Presidential Race
Important distinction. The 2016 election and wild card that could shake up the race, Joe Biden. He is still deciding if he'll run again. Critics say he missed his window, now business inner circle sending out a letter. And Donald Trump stirring up his comments on 9/11. Devin Dwyer has more from the white house. Devin, good morning to you. Reporter: The republican front-runner was asked how he would show compassion in the white house during a national crisis. Donald Trump saying he has a big heart, then took a swipe at the man in the white house on 9/11. Donald Trump arriving in Massachusetts with a presidential-style motorcade. Nobody's going to mess with these guys. That, I can tell you. Reporter: Trump on the stump and stirring up new controversy with the former republican president George W. Bush. I like him. Reporter: A compliment from trump overnight after launching this bold critique of bush just hours earlier. When you talk about George bush, I mean say what you want, the world trade center came down during his time. Hold on. You can't blame George bush for that. He was president, okay. Reporter: Jeb bush firing back, how pathetic for trump to criticize the president for 9/11. We were attacked and my brother kept us safe. Trump true to form digging in calling Jeb pathetic. The feud erupting as trump teams up with another opponent, Dr. Ben Carson to successfully take on CNBC. The network agreeing to limit the next gop debate to two hours after the pair had threatened to boycott. We won. Reporter: For democrats this morning the big debate is over vice president Joe Biden, will he or won't he get into the 2016 race? President Obama is pushing patience. I'm not going to comment on what Joe's doing or not doing. I think you can direct those questions to my very able vice president. Reporter: But many Biden supporters and Hillary Clinton's rival campaign seem to want Biden to just get on with it. There does come a point where I decision has to be made. Reporter: Clinton added she's not trying to rush Biden but clearly, many to, the pressure is higher than ever on the vice president to make a decision. He's up in Wilmington, Delaware, with his family this weekend. His supporters sending that e-mail asking everyone to hang on. That decision imminent. We want to talk about that right now. Thank you so much. For more let's bring in Matt dowd in Austin, Texas, Matt, good morning. Speaking about that e-mail one of vice president Biden's top aides sends this out laying out a platform saying he would run an optimistic campaign if he gets in. You've been a top strategy behind the scenes. What does this signal. Reporter: I think the aide wouldn't have sent it out unless he was encouraged or accepted by the vice president. My feeling and especially my feeling after the last debate was that the vice president was very close to getting in and I think he's even closer now to getting in in in this. His staff wouldn't be doing those things unless he was getting ready to get in the race. On the republican side, the outsiders are not only raising more money than the establishment candidates, they're now dictating the rules are to the next debate. With all your experience is there any telling where this race goes next? Reporter: I didn't -- Tom, I didn't -- Matt, I can ask again. The outsiders now have more money than the establishment candidates dictating the rules for the next debate. Is there any telling where the race goes with your experience. I think Donald Trump right now is the leading candidate. He has stayed the leading candidate for the next three months. I understand his concern about a debate. The last one was three hours long. I understand as a person that's advised candidates that you want

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