Idaho Republican U.S. Reps. Mike Simpson and Raul Labrador were on pace to beat their Democratic rivals and return to Congress.
In early results, Simpson tallied nearly 68 percent, to just 32 percent for his Democratic rival, Nicole LeFavour.
Labrador was trouncing ex-NFL player Jimmy Farris, 64 percent to 30 percent.
For Labrador, a win means his second term since sweeping into office in 2010 on a wave of tea party support.
Labrador says it was hard to take Farris seriously, given the Democrat voted for the first time in 2008.