Biden is right — Ryan did work with former OMB director Alice Rivlin and Sen. Ron Wyden (D-Ore.) on his Medicare plan but both have distanced themselves from the final proposals, saying they did not reflect their agreements. BusinessWeek reported that Wyden said that Ryan is "talking nonsense" about their partnership.

Update, 12:29 a.m. Sen. Ron Wyden took to Facebook to refute the Romney-Ryan Medicare plans: "The Wyden-Ryan white paper strengthened the safety net for these dual eligibles. The Romney/Ryan version shreds it. The [R]epublican ticket knows that neither I, nor any other Democrat, would support these policies."