Webmike johnston was sworn in as the new mayor in denver on monday morning. The mile high city's 46th mayor struck an optimistic tone and spoke about. Webmichael christopher johnston (born november 17, 1974) is an american educator and politician serving as the 46th and current mayor of denver, colorado. A member of the. Webnow mike johnston is running for mayor of denver with real plans to make denver america’s best city by making sure it is vibrant, affordable, and safe for everyone. Webdenver mayor mike johnston’s priorities one year into his term are familiar — tackling the high cost of housing, reducing homelessness and rebuilding trust with the police department. 'all our problems are solvable and we are the ones to solve them. ' this was the overarching theme of mayor mike johnston’s first state of the city speech. That approach to policymaking — in and out of the legislature — is a subject that mike johnston often turns to time and again as a way.