Venezuelan President Nicolas Maduro has rejected calls from the opposition for an early election, amid a fragile and fraying political truce in the country. In a national address, the President said, there can be no ultimatums. Mr Maduro's supporters massed outside the Miraflores Presidential palace in Caracas to show their support for the socialist leader.<br/><br/>Meanwhile, about 150 students protested against Mr Maduro in the western city of San Cristobal, clashing with police. Venezuela is mired in worsening economic crisis, leading to calls for Mr Maduro to step down. An opposition coalition had said its goal for talks, due to begin on the 11th of this month, was to set an election for early next year, well ahead of the end of Mr Maduro's term.