Under Maduro, Venezuela has seen a rise in unemployment, shortages of goods, closures of several corporations, and the deterioration of productivity. Maduro – who has seen a sharp decline in his approval ratings in correlation to the economic collapse, and was the subject of a 2016 recall referendum to remove him from office that was later suspended – has been criticized for what opponents consider to be him backsliding the country towards a full-fledged authoritarian regime; this led to an ongoing constitutional crisis stemming from a March 2017 ruling by the Supreme Tribunal of Justice (whose members largely consist of Maduro supporters) that removed immunity for National Assembly members (including those opposing Maduro), which subsequently made a brief assumption of legislative powers from the Assembly, and the Constituent Assembly election, which resulted in the formation of a Constituent Assembly intended to rewrite the 1999 constitution. These actions have worsened tensions and sparked violence during protests against the Maduro administration over concerns that Maduro would eliminate or significantly erode the independence of Venezuela's democratic institutions and shift the country towards one-man rule.