There is some truth to the point the article is making, but there is not parity between the two candidates. Most politicians will, at times, say one thing and do another. Newt has.
But for Romney it is a lifestyle. Even when his deeds and words match it is more do to coincidence and political expediency than personal conviction. At least that is the general pereption - and that is what counts.
Plus, Newt has the Contract With America on his resume. He can put the full weight of the elephant on the donkey and make it move. This capability may be superfluous if Congress goes completely GOP in November, but if Congress backtracks it could be very helpful.