苏黎世州
In spring 2007 Jositsch was elected as a member of the SP Zürich in the parliament of the Canton of Zürich, and since October 2007 he was a member of the Swiss National Council. In the first round of the 2015 Council of States elections in the canton of Zürich, Jositsch won the majority, and for the first time since 32 years, a SP politician will represent the canton of Zürich in the Swiss Council of States ("Ständerat").