Oregon Democrat At Risk As 5 States Hold U.S. House Primaries

Voters are casting their ballots in Idaho, Kentucky, North Carolina, Oregon and Pennsylvania.

After years of irking his colleagues, a longtime moderate Democratic congressman faces his stiffest primary challenge yet in Oregon.

In North Carolina, a rising Republican star beset by personal and professional scandals is looking to eke out a win in his GOP-leaning district.

And across the U.S., an exodus of House Democrats has put a half dozen congressional seats up for grabs.