<span style="color: #222222;">Tens of thousands of supporters of Serbian President Aleksandar Vucic yesterday rallied in Belgrade, in a show of force after months of opposition demonstrations. Vucic, once an ultranationalist has become a staunch pro-European liberal who hopes to bring Serbia into the EU. </span><br />'' <br />'' <span style="color: #222222;">Weekly protests by the opposition began in December against what critics describe as Vucic's slide towards autocratic rule. On Sunday, thousands rallied around the presidential palace in Belgrade accusing him of authoritarianism and muzzling the media. Vucic has rejected the claims. </span><br />''  <br />