McCain supported Amnesty. McCain opposed the Bush tax cut and actually used class warfare rhetoric straight from the Democratic handbook in doing so. McCain is fully on board the whacko Al Gore "glocal warming" kick. Republicans can't stomach that. Romney was not my candidate, but McCain has far more warts.
Don’t forget McCain-Feingold.
But where does Romney stand. Here is a man who supports No Child Left Behind, supports the Department of Ed (flipping after being against it), supports minimum wage, supported regulating the energy industry, raised taxes (including the gas tax), forced citizens to accept government funded health insurance(!), flipped on gun control, flipped on the Bush tax cuts, flipped on gay rights, flipped on government-subsidized embryonic stem cell research, flipped on abortion—yes, he says he had a “Road to Damascus” conversion on that, but given all his other flips, do we really want to hang our hats on that.
Thus, I conclude he’s no better than McCain.