Sentence:  Thus he argues that the members of the National Assembly were independent from the constituencies that elected them, because the latter (the assemblies, administrative and elected) are "biennially renewed," as was the National Assembly. ... This [being responsible to electors] is implicitly the case of the representatives in the National Assembly, who must also face <WSD>biannual</WSD> electionsnb.... 
Meaning of the word marked with <WSD> tags:  Occurring once every two years; biennial.