After months and months at the top of the polls, there is a real possibility that Donald Trump could be the nominee.

The winner's margin of victory also matters. If it's a squeaker, that will make the lessons learned for both parties much murkier.

[Mike] Bloomberg aides says he's more likely to run if it's [Donald]Trump or [Ted] Cruz versus Sanders, then there would, presumably, be space in the middle for him. But he's less likely to go if Hillary Clinton is the nominee.

Obama's even keel sometimes comes across as aloof or even cold.

While Romney has an overall deficit with women voters, his biggest disadvantage is with college educated women - wherever they work, at home, in an office, a store or a factory.

If Donald Trump wins, it will be a seismic event.

Michael Rubio said Trump's plan was impulsive and not well thought out. The other thing that's really annoying Republicans is that this was supposed to be their great week. The president gave a speech on terrorism that was not well received. They were working hard to tie Hillary Clinton to the president. Then along comes Donald Trump, and the story changes dramatically.