BTW MAC, seeing where that pendulum is sitting right now gives me the feeling that Hillary may have some troubles ahead.
The left/Socialist wing of the Democratic Party have tasted blood, and they may see Hillary as too much of a centrist, and as a result someone who won't push hard enough to complete the part of their agenda that Obama failed to implement during his Presidency.
IF Warren steps into the race, she may suck enough votes from Hillary make her path to the Presidency not as "inevitable" as the press would have us believe right now, or even as inevitable as it was the last time she tried to get the nomination.
If Warren runs and fails to get the nomination, she may be so bloodied by the Clinton machine that her supporters won't turn out for Hillary.
If Hillary does what every candidate seeking their Party's nomination is supposed to do... run to the primaries to the left (base) of her Party, then try to go to the center once she's won the nomination, the center may very well think back to Obama and walk away from her because they are tired of a Demorat in the WH, not show up to vote at all, or show up in diminished numbers.
What the GOP needs to do is to not nominate an ideologue, or an bleep.
Huckabee leading in Iowa falls under the latter category, and a whole bunch of people qualify for the former.
Here's a prediction:
The Democratize agenda for the next election or two will be simply scaring the people about Republicans, and using class warfare and racial hatred to turn voters out.
Not much of a prediction, was it?