purchasing a majority

Pegged to spend more than either the Republican or Democratic national committees in this year's midterms: the US Chamber of Commerce.

And hey, look at this line from the article:

The chamber's potential impact on the November elections was bolstered further by a recent Supreme Court decision, which allows corporations and their surrogates to spend freely on political ads for and against specific candidates right up to Election Day.

So the Republicans nominated the justices who overturned a century old law to allow big business to lobby freely... for Republicans!

I would like to point out that the 2008 election was notable for being the first that I know of where a presidential candidate refused to accept contributions from lobbyists and won. He and his party enact sweeping regulations of the banking industry, wage war on health insurance companies, and threaten to enact legislation cracking down on CO2 pollution from oil, gas, electric and auto companies. The next year a Supreme Court packed by Republicans lifts all restrictions on corporate spending. Elections have consequences, indeed.