[2] Before entering federal politics, he was a Councillor for Ward 5 on the Calgary City Council from 2017 to 2021.

[3][4][5] On July 8, 2021, Chahal, who was originally slated to seek re-election to city council, announced that he was nominated to be the candidate for the Liberal Party in Calgary Skyview in the 2021 Canadian federal election.

In the 2025 Liberal Party of Canada leadership election, he endorsed Mark Carney.

[6] On September 24, 2021, the Calgary Police's Anti-Corruption Unit announced that they were investigating George Chahal over a doorbell camera video that appeared to show Chahal removing a flyer for his Conservative opponent, Jag Sahota, from a constituent's door on the eve of the election.

[7] Chahal's campaign said that he removed the flyer supposedly because it identified an incorrect polling location for the voter's area; however, the homeowner said that Chahal's flyer was the one with the incorrect information, and that Sahota's matched the official information given to them by Elections Canada.