Human Events has an overview of Chris Cannon and today's primary that might send him packing:

Congressman Chris Cannon of Utah apparently is in real danger of losing his seat in Congress, and apparently that's causing him to employ extreme measures.

Cannon faces serious GOP primary opposition from former state legislator Matt Throckmorton. In the Republican state convention, Throckmorton forced Cannon into a primary election happening today. Throckmorton hammered Cannon's mass immigration stance, as well as his support for the controversial No Child Left Behind education law.

Throckmorton, a solid conservative who is 100 percent pro-life and for enforcing immigration laws, has found an easy target because of Cannon's immigration stance (Americans for Better Immigration grade: D)...