Health insurers have the second lowest number? That can't be right...
From what I've heard on the issue, the makers of drugs and health products stand to gain from this bill (I guess universal health care means that more people will have access to their products, and it means that the government will be buying from them), yet it says they're spending the most to fight this bill...
The reason is fairly obvious if you look at other countries health care drug purchases.
The state in these countries control which drugs can be prescribed in their service.
Drugs are tested for effectiveness and the ones which don't work or are less effective than others but more expensive can not be prescribed.
Many drugs from the USA when tested in Europe are found to be costly but ineffective. Many others are leaders in their field. Under the American commercial system, provided they are safe they can all be advertised and sold.
Mostly, but not all the ineffective drugs, can be sold and used in the UK if prescribed by private doctors. Unfortunately the patient does not know the good from the bad.
Such control in a USA state system, would cost the Drug producers billions in lost sales of ineffective drugs.
No wonder they are fighting.