Alexander wins GOP Senate primary in Tennessee, boosting establishment hopes

(John Partipilo / AP)

Establishment victories have boosted Republicans’ hopes of taking control of chamber.

Sen. Lamar Alexander defeats tea party challenger

The incumbent won easily.

Mike Lee’s thoughtful response


Sen. Mike Lee gets it mostly right.

Why David Perdue is the favorite against Michelle Nunn in Georgia


Sonny Perdue’s cousin has significant advantages against Sam Nunn’s daughter

Presidential contenders’ travails in the Senate

It isn’t easy running for president from a conservative soap box in the Senate.

The Senate margin


More than enough GOP senators voted for cloture on the budget.

Who voted against the Senate bill to end the government shutdown?

(Alex Wong / Getty Images)

The whos and the whys.