Republican Congresswoman Lauren Boebert has defeated Democratic challenger Trisha Calvarese to represent Colorado's 4th congressional district in the U.S. House of Representatives, Scripps News and Decision Desk HQ projects.Boebert, who has represented Colorado's 3rd congressional district since 2021, announced in December of last year that she was switching in 2024 to run for the Republican nomination in the state's 4th Congressional District. RELATED STORY | Live updates: Trump projected to win battleground state of North Carolina as Harris picks up ColoradoBoebert's decision to switch districts came after Republican Congressman Ken Buck said he would not seek reelection. Boebert also referenced the need for a "fresh start following a difficult year" that included family turmoil and numerous scandals that would have made for a tough reelection bid in her original district.Colorado's 4th district, which spans across conservative parts of the Denver metro area in the eastern part of the state, overwhelmingly supported former President Donald Trump during the 2020 election.RELATED STORY | What is Decision Desk HQ, the service that helps news outlets make race calls?