I don't have any particular expertise-I've never been a banker or an investment banker. But I did see an evolution in the system that I thought was problematic.

The Republican argument that raising the debt ceiling encourages additional future spending is logically irresponsible. The debt ceiling has to be raised to authorize spending already approved by Congress. Despite that fallacy, the GOP has been able to score political points with its argument.

I don't think Michael Bloomberg would say that his greatest skill is delivering the speech. He would say he's more of a nuts-and-bolts mayor-picking up the trash, dealing with the school system.

The Tea Party isolated Mitt Romney from mainstream voters, linking him to a rabid ideology that he could not shake as he desperately tried to move to the middle in the closing weeks of the campaign. Lesson: The loudest voices don't often command the votes needed to win in November.

I don't like politicians who vacillate.

Yes, people pull the trigger - but guns are the instrument of death. Gun control is necessary, and delay means more death and horror.

Imagine if investors in Wal-Mart really cared about bribery at that company's overseas operations or safety standards at its overseas manufacturing plants. If investors pulled their capital, corporate leaders would have to respond.