He is obviously a single-issue candidate, and they do not do terribly well in the presidential process.

If Warner doesn't find a strong candidate, he'll be held to account by national Democratic activists who vote in Iowa and New Hampshire.

Although he does not like backing down, Bush has realized that he was too ambitious.

Rendell is not just another governor. He's already been a national figure. He has been (Democratic National Committee) chairman, and he knows the movers and shakers and donors in all 50 states.

The vice presidential candidate tends to be a bit of an afterthought.

The presidential candidates are offering prescriptions for everything from Iraq to healthcare, but listen closely. Their fixes are situational and incremental. Meanwhile, the underlying structural problems in American politics and government are systemic and prevent us from solving our most intractable challenges.