For those in the UK you can forward to 7726 to report it [1]
[1] https://www.gov.uk/report-suspicious-emails-websites-phishin...
Also, https://www.fcc.gov/consumers/guides/stop-unwanted-robocalls...:
# Political Robotexts If you are receiving texts that you didn’t ask for, report the sender by forwarding the texts to 7726 (or "SPAM").
Good grief, I had no idea this existed!
Also, https://www.fcc.gov/consumers/guides/stop-unwanted-robocalls...: