Bill Cadman

Term-limited in the State House, Cadman filed to run for the Colorado Senate in the 2008 legislative elections, seeking the seat held by Senator Ron May who was himself term-limited. Upon May's resignation in October 2007, Cadman sought[10] and unanimously won a vacancy appointment to May's seat in the Colorado Senate.[11] He resigned from the State House on December 10, 2007, and was sworn into the Senate on December 11.

He faced opposition in the 2008 election from Democrat Diane Whitley, but ultimately won election to the Senate with 65% of the vote.

During the 2009 legislative session, Cadman was the prime sponsor of a Senate Joint Memorial focusing on protecting the rights of workers to cast secret ballots in workplace elections. SJM 09-007 fought to counter-act the "Employee Free Choice Act" that would force employees to cast secret ballots for union elections in the presence of a union organizer. The bill would have urged Congress to stop the EFCA from passing. The bill, while supported by the entire Senate Republican Caucus, failed to reach the Colorado House of Representatives as it was postponed indefinitely in the Senate State, Veterans, and Military Affairs Committee.

In 2010, Cadman sponsored HB10-1287 with Representative Lambert that would have disallowed state employees from using state-owned vehicles for commuting purposes. The bill, which would have freed up $3 million for the state budget, passed through both chambers before reaching the Governor's desk. Governor Bill Ritter, a Democrat, vetoed the bill, claiming it "sweeps too broadly" and would diminish public safety in the process.[12]

Senator Cadman sponsored several legislative measures throughout the course of the 2011 legislative session, one of the biggest measures being HB 11-1284. This bill would have impacted how beer is sold throughout Colorado, allowing grocery stores and convenience stores to sell full-strength beer. The bill was first introduced the House and assigned to the Committee on Economic and Business Development where it was passed to the House floor; however, the bill was postponed indefinitely during second reading.

In 2011 after Senator Kopp’s resignation, Senator Cadman was elected to serve as the Minority Leader by the Colorado Senate Republican Caucus.

During the 2012 session, one of the several bills Cadman sponsored was a bill urging state agencies to seek Colorado-specific solutions "in lieu of federal regulations whenever possible". HB 12-1175 would have focused on finding solutions to local problems on a local level, instead of applying a "one-size fits all" idea from federal solutions, giving state’s more control. The legislation passed through the House before being assigned to the Senate Health and Human Services committee, where it was postponed indefinitely by a party-line 3–5 vote.

In 2012, Cadman was re-elected as Minority Leader for the Senate Republican Caucus by his peers. He served on the Legislative Council and the Executive Committee of Legislative Council due to his leadership role.

After the redistricting of Colorado’s legislative seats in 2011, Senator Cadman was redrawn into Senate District 12. Therefore, in order for Senator Cadman to be able to run again, Senator Keith King, the current Senator of that district, stepped down and chose not to run for re-election.

During the general election, Cadman faced no Democratic opponent; his opponents were Dave Respecki from the Libertarian Party, and James Bristol from the American Constitution Party. Cadman won 68.2% of the vote.[13]

Senator Cadman was re-elected as Minority Leader by the Republican Caucus and will continue to serve on the Legislative Council and Executive Committee of Legislative Council as well.