[3] He served as the leader of the Red Party from 2012 to 2023, when he resigned in the wake of stealing a pair of sunglasses from a shop at Oslo Airport Gardermoen.

[6] His master's thesis Med makt i Bagasjen, En analyse av politkerelitens yrkesmobilitet (With Power in the Luggage, An Analysis of the Political Elite's occupational mobility) was about politicians changing careers to PR, a subject Moxnes was very interested in as a politician.

As a leader, Moxnes represented Red Youth in the Supreme Court of Norway, where the organisation was sentenced for publishing schoolbooks for free on the internet.

[1] In June 2023, Romerikes Blad revealed that Moxnes had been caught shoplifting a pair of sunglasses at Oslo Gardermoen airport.

He initially claimed it was an accident, but it was later revealed that he had removed the pricetag and stuffed them in his suitcase, raising questions about the sincerity of his explanation.

[16] With Moxnes' consent, the newspaper Verdens Gang released the surveillance footage showing him taking the sunglasses and placing them first on his luggage trolley, then putting them in his pocket shortly thereafter.

[20] In March 2014, the Oslo council decided to report Moxnes for violating the duty of confidentiality, after a leaking in the Lindeberg case.

After two rounds of mediation, Berntsen got his job back, and received 410 000 crowns in compensation for lost wages.

Moxnes characterized the acquittal as a victory for freedom of speech, and stated that he intends to use it in further struggle for increased transparency.

[33] At the awarding of the Norwegian Press Association's Flavius Prize on 26 January 2016, Moxnes received an honorable mention.

[35] He argues that the Conservative Party serves to secure the capitalist rights of the rich minority, where the small elite has too much power over Norway's most important national resources.

He explicitly states that the party is not communist, but socialist, separating themselves from Rødt's predecessor AKP's Maoist roots.

Moxnes argues that policies that would help Norwegian workers and assist against social dumping are blocked by undemocratic laws enforced by the European Union.

[41] In November 2023, Moxnes revealed that he had a mental health problem after being additionally caught stealing from grocery stores in Oslo.