These Colorado races could decide control of US House

Three of Colorado 's eight congressional districts could determine which party controls the U.S. House of Representatives .

Yadira Caraveo's bid for a second term in the closely divided 8th Congressional District has turned into one of the most competitive races in the country.

The 8th CD is considered a linchpin in the pitched battle for control of the House .

In Colorado 's 3rd CD, GOP incumbent Lauren Boebert came within just 546 votes of losing reelection in the Republican -leaning district.

Democrat Adam Frisch , former member of the Aspen City Council , is making his second run in the sprawling district.

Frisch is facing first -time Republican nominee Jeff Hurd , a Grand Junction attorney.

In the 4th CD, Democrat Trisha Calvarese faces Republican opponent who moved back into the district about a year ago .

One of the consequences of Colorado dropping of the ranks of battleground states has been a dearth of neutral polling in down-ballot races.

Calvarese has been outspending Boebert by roughly 10-1 on broadcast, streaming and digital TV screens in a brutal air war premised on internal polling that found Boebert with unusual high negative ratings among constituents she hopes to represent.