The Primary used to be just the first step in the electoral process — now the primary has transformed, in many places into the moment when the election is all but decided. It's shaping Congress.

Democratic Party voters in Pennsylvania picked their candidates to challenge incumbent ​Republican lawmakers in the U.S.

The winner of the May 19 Democratic primary for Kentucky's open U.S. Senate seat will face the Republican nominee in November ...

The Republican primaries in all three states are expected to be competitive, with two of them likely to advance to runoff ...

MONTGOMERY, Ala.(AP) — Alabama lawmakers looking to take part in a national redistricting battle could vote Friday on a plan to alter the state's congressional primaries if the courts allow ...