Switzerland - 1999 Constitution
| Title | Article 137 |
| Article |
137 The political parties shall contribute to the forming of the opinion and the will of the People. |
| Categories |
- Democratic principles (Popular sovereignty) |
| Source | Gisbert H. Flanz ed. 2004. Constitutions of the Countries of the World. Dobbs Ferry, New York: Oceana Publications. |
