Jeb Bush has fallen out of the top tier of The Chase, dislodged by his homestate friend and rival Marco Rubio.

Rubio is now in the No. 3 spot, bouncing back into the top Republican tier after a strong debate performance and an uninspiring campaign stretch by Bush, whose early state polling is stuck in neutral.

The Chase is U.S. News' rankings of the 2016 presidential contenders and their shot at their party's nominations.

The Florida senator last appeared in the top tier in August, before a surging Ben Carson nudged him into Tier 2.

Here's why Rubio's returned:

