In sum, a Senate bill with the public option is not quite a done deal. However, for the sake of argument, let’s assume that Reid can get such a bill to the floor. He can only do so by getting moderates to burn political capital — voting for cloture before voting against the public option or the bill in total. Voting for things before voting against them tends to hurt people on Election Day, as the moderates undoubtedly know. And the remainder of the bill may be difficult to pass, regardless of the public option. Including the public option (an idea so good that House Speaker Nancy Pelosi wants to rename it) may please liberals today, but it increases the risk that the bill collapses of its own weight on the Senate floor.