The Washington establishment has invested in candidate Thom Tillis, a state House leader who defeated a field of Tea Party-backed challenger in a May primary and now faces incumbent Democratic Sen. Kay Hagen.

The U.S. chamber has so far put $1.2 million into the race, according to OpenSecrets.org.

The other races are in Alaska, Arkansas, Colorado, Georgia, Kansas, Louisiana and now Iowa — all considered “tossups,” according to the nonpartisan website RealClearPolitics.

“There will have to be some fence mending with these groups, particularly in states with late primaries,” Andrew Smith, a University of New Hampshire pollster and political science professor, said earlier this week.