I would begin with a constitutional amendment redefining a corporation such that it does not have personhood (as was given in Santa Clara County v. Southern Pacific Railroad). It is that personhood which provides the basis of a corporation's 'free speech' argument.<p>That personhood obscures the fact that a corporation, as a profitable entity, has access to far greater resources than almost any single person, and does not suffer the same consequences of their actions as a single person. For example, if a person kills, the person is tried for murder and punished according to the nature of the crime; if a corporation kills, they are at best assigned a monetary fine which is often hardly a drop in the bucket and subject to a lengthy court process.