The CBO admits it in passing

The Congressional Budget Office, that does impartial financial analysis of potential legislation, has this parenthetical remark about the idea of co-ops for health care:

(The proposed co-ops had very little effect on the estimates of total enrollment in the exchanges or federal costs because, as they are described in the specifications, they seem unlikely to establish a significant market presence in many areas of the country or to noticeably affect federal subsidy payments.)

h/t to Politico by way of mcjoan who points out that Politico was a day behind Daily Kos.

--the BB