The rand fell from the year’s best levels after a new opinion poll showed support for the ruling African National Congress is plunging and a party backed by former President Jacob Zuma may become the country’s third-biggest. The South African currency depreciated as much as 0.9% to 18.6231 per dollar after Bloomberg reported the result of the poll by the Social Research Foundation Wednesday. Prior to this, the rand had been strengthening for a fourth day, its longest streak in a month. Read more: ANC Support Drops in South African Poll as Zuma Party Surges “Uncertainty in South African politics increased markedly ... (full story)