Who's up and who's down in Iowa

Interesting read in this post from the Iowa Starting Line website about the Feb. 1 Republican caucus.  They call it today's Monday Power Rankings.  

Here's their assessment:

1. Ted Cruz and Donald Trump are 1-2.
2. Marco Rubio and Jeb Bush are 3-4.
3. Chris Christie is in 5th but surging.
4. Ben Carson is in 6th and falling.

It would be fun to share and discuss this with your students.  Another good idea would be to find additional Iowa coverage supporting and contradicting this assessment.  Polls from RealClearPolitics and the prediction market PredictIt would be good resources.