Should the power of the Senate be transferred to regional councils?

Last month, Ciudadanos party leader Albert Rivera proposed turning Spain’s Senate into a more efficient, German-style, upper chamber of Parliament. The plan moves the powers of the Senate to communities, "where necessary to ensure equal living conditions across the country, maintain the legal and economic unit or basic equality of all Spaniards". The plan would eliminate the Senate and create a regional council of presidents with a weighted vote based on the population of their community.