[WASHINGTON.CBSLOCAL] President Barack Obama has high praise for potential 2016 contenders Vice President Joe Biden and former Secretary of State Hillary Clinton."I think Joe Biden will go down in history as one of the best vice presidents ever, and he has been with me, at my side, in every tough decision that I've made," Obama told MSNBC in an interview Thursday held at American University. "Hillary, I think, will go down in history as one of the finest secretaries of state we've ever had, and helped to transition us away from a deep hole that we were in, when I first came into office, around the world, and rebuilt confidence and trust in the United States."