Chris Christie and Rand Paul's war of words, explained

In a likely preview of the 2016 Republican presidential nominating contest, New Jersey Gov. Chris Christie and Kentucky Sen. Rand Paul spent the week battling over the role of government and their vision for the country.

The debate escalated quickly and at times even got a little personal.

Here's basically how it went down, with a few liberties taken.

(Photos by Getty Images, AP)