paul: that was democratic presidential hopeful joe biden rolling out his health care plan in iowa this week the former vice president promising to finish the job over obamacare and rejecting calls for medicare for all. it's an effort to distinguish himself from some of his 2020 rivals, including vermont center bernie sanders. he took aim at biden this week accusing the democratic front-runner of sounding like donald trump on the issue but were back with him and stossel, kate odell and kyle peterson. kate, what is the fundamental difference between what biden is proposing and what the medicare for all crowd needs? >> there making much of their differences this week for the primary purpose but i don't think the differences are all that large. joe biden is talking about a public option and what a public option is the government ensures that expose and line of credit from the treasury and thus can undercut other insurers on premiums and cost and then can also have huge leverage to