[1] On 18 March 2007, Johansen met with members of the newly elected Hamas unity government and announced that Norway would resume economic aid.

[4][5] On 30 April 2018, Johansen took part in a Dagsrevyen debate with the Minister of Justice, Tor Mikkel Wara, regarding immigration in Oslo.

Johansen defended the city's handling of immigration, citing increase in borough spending and the strengthening of kindergartens and better opportunities to learn Norwegian.

[9] Johansen presented his second cabinet on 24 June, with the only change being Sirin Hellvin Stav who succeeded Lan Marie Berg as commissioner for transport and the environment.

He also asked the health services to document hospitalisations and hospitals' capacity; and that municipalities should be in charge of measures themselves, including the temporary halt on alcohol beverages.

[12] On 9 February 2023, Johansen conducted a reshuffle of his city commissioners not soon after revelations of dire conditions in care homes in Oslo.

The reshuffle included the sacking of Robert Steen, the city commissioner for the elderly, health and labour; he refused to comment on whether this was related to the revelations.

[14] Shortly before departing as governing mayor, Johansen was chosen as the next secretary-general for Norwegian People's Aid.