Here’s the Real Clear Politics take on the Republican primary race as of Friday. I’ve modified it to show only the top six candidates—which, let’s face it, are the only ones we’re really interested in at this point. Note that this is not a single poll, but an aggregate of the most recent four national polls, all taken after last week’s debate.
Needless to say, you shouldn’t treat this as gospel. Other poll aggregators may show slightly different results. Still, it’s a pretty good roadmap to the current state of play.
UPDATE: Here’s the HuffPost Pollster version of the same chart. I decided I didn’t really care about Ted Cruz, so I ditched him.