Venezuela was one of three countries that emerged from the collapse of Gran Colombia in 1830 (the others being Ecuador and New Granada, which became Colombia). For most of the first half of the 20th century, Venezuela was ruled by generally benevolent military strongmen who promoted the oil industry and allowed for some social reforms. Democratically elected governments have held sway since 1959, although the re-election of current disputed President Nicolas MADURO in an election boycotted by most opposition parties was widely viewed as fraudulent. Under Hugo CHAVEZ, president from 1999 to 2013, and his hand-picked successor, MADURO, the executive branch has exercised increasingly authoritarian control over other branches of government. National Assembly President Juan GUAIDO is currently recognized by more than 50 countries - including the United States - as the interim president while MADURO retains control of all other institutions within the country and has the support of security forces. Venezuela is currently authoritarian with only one democratic institution - the National Assembly - and strong restrictions on freedoms of expression and the press. The ruling party's economic policies expanded the state's role in the economy through expropriations of major enterprises, strict currency exchange and price controls that discourage private sector investment and production, and overdependence on the petroleum industry for revenues, among others. However, Caracas in 2019 relaxed some economic controls to mitigate some impacts of the economic crisis driven by a drop in oil production. Current concerns include human rights abuses, rampant violent crime, high inflation, and widespread shortages of basic consumer goods, medicine, and medical supplies.