Curious, you have a source ? from the wiki "with a constitution promulgated on 12 September 1848. This constitution provided for the cantons' sovereignty, as lo

Curious, you have a source ? from the wiki "with a constitution promulgated on 12 September 1848. This constitution provided for the cantons' sovereignty, as long as this did not impinge on the Federal Constitution. The creation of a bicameral assembly was consciously inspired by the United States Constitution, the National Council and Council of States corresponding to the House of Representatives and Senate, respectively "