What does David Axelrod think of the potential 2016 presidential contenders?

David Axelrod, President Obama's former chief strategist and a longtime figure in politics, weighed in Tuesday on the candidates who look likely to face off for the presidency in 2016. Axelrod is currently promoting his new book "Believer: My Forty Years in Politics," and also had some campaign advice for former Secretary of State Hillary Clinton. Here's what he had to say about the strengths and weaknesses of each possible contender:

Former Florida Gov. Jeb Bush (Republican): "I think he has the advantages of being a well known name and the disadvantages of having a well-known name. There's some lingering negativity assigned to his brother's presidency that translates to him, some weariness about a third Bush. On the upside he has the ability to raise a lot of money, a political network, and he has something that is hard to teach which is authenticity. Jeb Bush is a very authentic person, close ties to the Hispanic community. If he can get through the primary without selling out on immigration reform he could be a formidable candidate."

Sen. Marco Rubio, R-Florida: He's a talented guy, unproven. [It] may not be his time, but he certainly is a promising figure in their party... He's young and he's a senator. Obama was only the third senator in 120 years to get elected president. I'm not sure we're going to elect another senator in 2016."

New Jersey Gov. Chris Christie (Republican): "I think his advantage is that he is brash and forthright. His disadvantage is that he's brash and forthright."

Sen. Rand Paul, R-Kentucky: "He's a very interesting guy. He's a guy who's reaching out uniquely to younger people with his positions on national security, on marijuana, some of his libertarian positions. He seems a little bit flighty at times and whether he's grounded enough to be seen as a potential president is a question."

Former Secretary of State Hillary Clinton (Democrat): "Her strength is that she is a known commodity. People thinks he's strong, experienced, able to handle the job. The disadvantage is that she can be cautious, as I said before, and [has] the same problem that Bush has - a little bit of Clinton weariness - but I think the strengths outweigh the problems."

Vice President Biden (Democrat): "Joe Biden has been a great vice president. He's a wonderful guy, he's every bit as experienced as anybody else in the race and there's a realness to Joe Biden that people respond to. The disadvantage is that he's older, and that creates questions that he would have to deal with if he ran."