With Biden projected to win the US presidency, many world leaders hastened to congratulate him. But some have been conspicuous in their absence. Some have gone further, backing unsubstantiated Trump made about voter fraud. Russian President Vladimir Putin Four years ago Mr Putin was among the first to congratulate Trump on his election victory, but there has been no message to Biden this time. Spokesman Dmitry Peskov said the reason was the legal challenges being launched by the Trump campaign. Slovenian Prime Minister Janez Jansa Mr Jansa has repeated allegations of voter fraud carried out by Democrats. Mr Trump's wife...