Washington (CNN) - In no particular order, here are four things you should watch in this week's desert debate: Ron Paul, Rick Santorum, Mitt Romney, Newt Gingrich.
The final four have not shared a stage in almost a month: Not since Romney won Florida, Nevada and Maine. Not since Santorum triumphed in Minnesota, Missouri and Colorado. Not since Paul won - well, Paul won nowhere, though he told me on CNN's "State of the Union," "It all depends on how you measure winning ... the bottom line is who is going to get the delegates ... and we think we're doing pretty good."FULL STORY