Re: RE Should someone point out to the EFF that the US constitution for free speech ...
One upvote, and one observation.
"Outright buying of elections" is charged with some frequency, but difficult to confirm in practice. Electoral winners are determined by counting ballot marks or electrical/electronic equivalents made by individual voters. It probably is illegal in most jurisdictions to bribe voters for specific action, and because of the mechanics of elections would almost always be unenforceable in practice. If done at all, it almost certainly is rare and probably has essentially no net effect. There are well-substantiated reports of political organizations distributing money and other things of some value (commonly food or food vouchers) on election day to "get out the vote," and that often was done with a wink and a nudge that conveyed the wishes of the organization if its identity alone did not do so effectively. That falls a bit short of "buying."
There doubtless are many easily documented cases in which the better financed candidate, who could afford more and better publicity efforts, won election, but copious financing, depending on its source, may have negative effects as well, and there certainly will be a many cases where the best financed was not elected. The most recent example, of course, is the recent presidential election, in which Democratic candidates outspent Republicans by 5:4 and the losing candidate, Hillary Clinton, outspent the winner, Donald Trump by more than 5:3.