Republicans Face Tough Senate and Governor Races Across the Great Plains

Republicans have dominated the Great Plains and the center of the country for about 25 years.

Now they face several tough races for Senate and governor.

The contests are in a region where Republicans have held an advantage for a long time.

The changing political outlook has made the party nervous.

Senate races will help determine who holds seats in the US Senate.

Governor races will decide who leads states in the region.

The available information does not say which specific races are close or what happens next.