Caracas( CNN) Venezuelans have been summoned to the polls on Sunday to vote for a new lawmaking torso, to be known as the Constituent Assembly.

There are 545 seats up for grabs and those elected would essentially supplant the present National Assembly — which is controlled by opponents of President Nicols Maduro’s government.

The newly elected body would rewrite the 1999 constitution, the cornerstone of former President Hugo Chavez’s “Bolivarian Revolution, ” which extended presidential term limits and allowed for indefinite reelections.