Members Already Have Public Health Care

Continuing my little health care debate with Lisa, who for some reason has closed comments on her blog (I'm assuming she's busy with life and doesn't have the time to respond, which is fair enough), there's an item that quickly jumps out at me as smokey:

4) The members of Congress and the President must commit to ditching their own private health care plan they receive through the federal government. If they expect us to buy into the idea of the public option, they must be willing to switch to the same plan for themselves and for their families.

I've read the same argument by Republicans a number of times. Sure if the "public option" is going to be so great then why not Members of Congress be forced to use it, right? THEY ALREADY DO. They already have public insurance. Members of Congress already enjoy the finest tax payer funded health care program in the world. It is truly a socialist system. Instead of arguing that Members should be forced into a system they already belong, why not tie their very own health care system to the passage of a health care reform bill that includes the "public option" for other people as well? Portraying the argument that Members of Congress don't want the "public option" for them is totally disingenuous. They already have it. It's paid for by me and you. If it's good enough for them why not us?