Madonna wants Hillary Clinton to run for president in 2008, although she's convinced America isn't yet ready for a female leader. The New York Senator and former First Lady is widely tipped to be a Democrat candidate in the race to replace George W Bush in the White House. But Madonna fears Americans won't trust a female president. She tells Out magazine, "Hillary should go for it. I don't think now is necessarily her time, or the Democrats' time, but she should certainly go for it. "You've got to start somewhere, in terms of a woman leading the US. In Europe and Asia and elsewhere, women have ruled over millions, it's not an abstract concept. But in America, men are still afraid. "And I don't think women are too comfortable with the idea of a female in charge. I find that really amazing."