Both candidates claim the title on Sunday, ahead of Tuesday's showdowns in Indiana and North Carolina.
Clinton, in Bend, Indiana: "We came from so far behind in Indiana. We're still the underdog. But we are moving forward."
Obama on "Meet the Press": "I'm the underdog. I came into this thing with everybody anticipating that we would be blown away."
Plus: Clinton shortens her stump speech from 40 to 16 minutes, much of it criticizing Obama.
