A viewer's guide to the immigration debate

Photo: Bill Clark / Getty

Senators gathered today to officially kick off the immigration debate in the upper chamber, which could last weeks and go any number of different ways.

Between the lines: The Senate hasn't functioned this way in a long time, and it's unclear whether the two parties will be able to create any kind of consensus product addressing a number of extremely political issues. Action is likely to be centered on a handful of topics that have been at the heart of recent attempts at a DACA solution.