With a little help from Keith Hennessey, Bill Kristol points out:

Nancy Pelosi and Louise Slaughter have come up with a parliamentary maneuver — “deem and pass” — reeking of evasiveness and trickery that Democratic members are going to have to embrace. But it gets better! The point of “deem and pass” is to allow representatives to vote directly only on the reconciliation “fixes” rather than on the Senate health care bill (which will be deemed to be passed if reconciliation passes). But the reconciliation “fixes” make the Senate bill even more politically unattractive.
…
The Democrats would actually be better off — well, less worse off — simply voting to pass the Senate bill. But by embracing the Slaughter Rule and this package of reconciliation fixes, they’ve managed to make a bad political situation for themselves worse. Congratulations!