The man who led Ukraine's orange revolution two years ago has been transformed into a lame-duck president following a humiliating parliamentary vote that effectively strips him of all powers. Viktor Yushchenko, Ukraine's opposition leader turned president, no longer has the power to veto the choice of prime minister or foreign minister.Lawyers for President Yushchenko said yesterday that they were preparing to appeal, describing the move as "unconstitutional". However, Mr Yushchenko appears to be the big loser in Ukraine's latest constitutional battle, which has paralysed the country over the past year because of vicious internal power struggles.