Question juridique clé
Which cantonal authority was competent to hear the voting complaints about alleged hidden public financing?
Solution extraite
The Federal Supreme Court held that the cantonal authorities had to decide first; the Grand Council could not decline competence without resolving the issue and, if needed, transferring the case.
Motifs extraits
The complaints concerned preparatory acts and possible municipal/regional public financing, so the statutory cantonal complaint scheme in Arts. 163 and 164 LEDP had to be applied first; the Federal Supreme Court was not a first-instance fact-finding body here.