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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

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Sen. Mike Lee gets it mostly right.

Why David Perdue is the favorite against Michelle Nunn in Georgia

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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

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

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

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The whos and the whys.