Hehr resigned from cabinet on January 25, 2018, after allegations of workplace misconduct surfaced from when he was the Member of the Legislative Assembly of Alberta for Calgary-Buffalo.

[4] He filed for that office but withdrew his candidacy later in September, citing the heightened risks from COVID-19 infection for people with spinal cord injuries.

He played for the Alberta Junior Hockey League champion Calgary Canucks in 1989–90 and for the Mount Royal College Cougars the following year.

He has served on the following boards in the past few years:[8] In June 2006, Hehr won the Liberal nomination for Calgary-Buffalo, in the heart of downtown Calgary.

[12] In 2014, Hehr proposed a private member's bill into the Alberta Legislature that would urge public schools to support students who wished to create gay-straight alliances.

[13] The bill, while supported by the Liberals, Alberta NDP and some Progressive Conservatives, was voted down by a majority of PC and Wildrose MLAs in April.

[14] Six months later Laurie Blakeman brought a private members bill forward which essentially adopted Hehr's motion.

Conservative incumbent Joan Crockatt had only won a 2012 by-election with 37 percent of the vote, the worst showing for a Tory in Calgary in recent memory.

[22][23] In November 2017, it was reported that the Ethics Commissioner was investigating Hehr following accusations that he used Parliamentary Resources to help his father campaign for a seat on the Calgary Board of Education.

Everyone in Canada has a sob story", and in reference to their reduced life expectancy "So you probably have about 10 years left then now, that's good news for the Canadian government.

Shortly after, a wife of a veteran with posttraumatic stress disorder came forward accusing him of poor treatment during a meeting in October 2016.

[27] Hehr resigned from cabinet on January 25, 2018, amid two separate allegations of sexual harassment dating to his time in the Alberta legislature.

On September 6, 2021, Global News reported that Hehr would be filing nomination papers to run for mayor in the 2021 Calgary municipal election, which was scheduled for October 18.