Another day, another Elton John outburst, this time directed at President Bush. In recent weeks, the Rocket Man has exploded at a variety of targets, including Taiwanese photgraphers and Madonna.Now's he's taken aim at the newly re-elected president, calling him 'the worst thing that has ever happened to America.''I've never lived in a time so vexing, John told the British magazine Time Out. 'I just wanna scream. Bush and this administration are the worst thing that's ever happened to America.John also blasts British Prime Minister Tony Blair, 'Im just as angry at Tony Blair. You lied to us Tony..It was...