Is this the end of Romney's political career?

Even if he runs for the presidential nomination in 2016, he will not get it. He was lucky to have been able to run against such weak opposition this time around. Do people run for lower offices after running for president? It is unlikely that he could get elected again in his home state of Massachusetts. His politics is way to the right of what it was when he was elected governor. He lost by a fairly substantial margin to Obama there in the presidential election. Where then could he run for office? Nevada, with its large Mormon population, also went for Obama.