Robert Louis Beauprez (/boʊpreɪ/;[3] born September 22, 1948) is an American politician and member of the Republican Party from the state of Colorado.

His tenure as state party chairman was marked by an aggressive attempts to use redistricting to get more Republican candidates elected in Colorado.

The Republican Party lost control of the Colorado State Senate for the first time in four decades while Beauprez was chairman.

[6][7] In May 2006, ProgressNow, a liberal advocacy group, produced an Internet-based ad that again focused on Beauprez's draft status during Vietnam.

In October, Beauprez started running ads that attacked Ritter's performance as Denver district attorney, citing a plea-bargained case against illegal immigrant and alleged heroin dealer Carlos Estrada Medina.

Beauprez's campaign manager, John Marshall told a local news station, "In federal criminal databases, the guy's information matches up."

[11] Bureau of Immigration and Customs Enforcement Senior Special Agent Cory Voorhis was prosecuted for retrieving Medina's rap sheet from the NCIC database and sharing it with Beauprez' staff.

Beauprez defended the action as "whistleblowing," citing a pattern of lenient plea bargains during Ritter's term as district attorney.

[16] The primary election was held on June 24 and Beauprez triumphed with a plurality, taking 116,333 votes (30.24%) to Tom Tancredo's 102,830 (26.73%), Scott Gessler's 89,213 (23.19%) and Mike Kopp's 76,373 (19.85%).

[citation needed] On 1 July, Beauprez announced Douglas County Commissioner Jill Repella as his running mate.

Beauprez's campaign stood behind the comments and said that "in full context, [he's] saying that it's sad more people are not doing well enough to pay federal income tax.

"[22] In August, Beauprez said that he would send Colorado Army National Guard troops to the Mexico border: "If Rick Perry or another governor requested it, I would certainly step up and do my part."

In the 2015-2016 election cycle, Beauprez founded Colorado Pioneer Action,[25] which sponsored a number of communications (including websites and mailers) promoting and supporting certain candidates for (primarily state legislative) office and opposing others.

After nearly a year of pre-trial motions, including multiple attempts by Beauprez to have the complaint dismissed,[28] the case went to trial at the end of March 2017.

He abruptly resigned his position on May 25, 2023, citing lack of transparency in the compensation given to the organization's president Matt Schlapp.