Twenty-six House Democrats who signed on to a previous version of the Medicare for All Act have dropped off from the latest bill released Wednesday, as leaders are steering members to focus on shoring up Obamacare instead.

Democrats picked up 40 House seats in November, but the number of lawmakers backing the Medicare for All Act so far has fallen to 107. That is fewer than the 124 co-sponsors the Medicare for All Act finished with in the 115th Congress.