On Congress.gov, locate Representative Ken Buck's profile. From his profile overview, identify his political party, the U.S. state and district he represents in the House, and the start and end years of his service in Congress.
Navigate to 'congress.gov'. Search for 'Ken Buck' to locate his member profile. Click on the link to Ken Buck's member profile. Locate the 'Overview' section on his profile page. Identify and extract his political party. Identify and extract the U.S. state and district he represents in the House. Identify and extract the start and end years of his service in Congress. Synthesize all identified information into a concise answer.
Successfully navigates to 'congress.gov' and locates Ken Buck's member profile. States Ken Buck's political party is 'Republican'. States he represents 'Colorado, District 4' in the House. States his service in Congress is from '2015 - 2024'.