insurance company political donations

Why U.S. senators allowe to vote on matters which have raised millions of dollars from special interests?
that are affected by the matter being voted on? For example … Senator H has gathered over the past 5 years, $ 1,500,000 from the industry's health care in political donations, and be asked to cast a vote on a bill proposing the creation of a national public choice in health insurance to compete against private insurance companies and drive down the cost of health care in general. I mean the judges have to recuse when there is such a conflict of interest, why Senators do not have to do it? this is a problem on both sides of the aisle …… yes, and what is its name .. Feinstein husband made a killing in Iraq contracts as warprofiteer. … Baucus, have tons of range of the health industry and chairs the Committee on the reform of health care and has banned single-payer advocates of the roundtable.
Baucus (Chairman) and Grassley (senior member), both the Senate Finance committee has big-time K Street contributions. Kennedy handed over the chairmanship of the Senate Health, Education, Labor and Pensions (HELP) Committee, promoting immediate reform of health care, Chris Dodd. Coincidentally, Dodd's wife serves on the board of three pharmaceutical companies and health insurance. Republicans and Democrats are solidly bought and paid for.
HR676 – The Single Payer Solution, Part 1 of 4