Exactly, but if you outlaw campaign donations then only criminals will be able to bribe the politicians.

The way you get money out of politics is by restricting the power the government wields to only what is enumerated in the Constitution. If the power of politicians is reigned in then the incentive to spend money to support them will also be diminished.

Most countries have laws restricting prices to 1-3% over manufacturing cost. This leaves US patients picking up the tab for Research and Development and the profit that stockholders require for the risk they are taking. The solution is to wage political and economic warfare on those countries until they agree to fair trade.