On September 12th a queue of stationary vehicles kilometres long blocked the coastal highway that leads out of Puerto Cabello. “Politics,” said a resident, wearily, by way of explanation. The politics in question were taking place beside the entrance to the port city’s weed-infested airstrip. A small group of supporters was waiting to escort Henrique Capriles Radonski, the opposition candidate in Venezuela’s presidential election, to a rally in town. A couple of hundred red-shirted supporters of President Hugo Chávez were throwing stones at them from across the highway as a sound system blasted out campaign songs. A pickup truck had been set on fire. “The opposition has no right to come here and deceive working people,” said Luis Rojas, one of the stone-throwers and also an employee of the city’s chavista mayor. Mr Chávez, a former lieutenant-colonel who preaches radical socialism and rails against American imperialism, is seeking to be elected president for the fourth time on October 7th. But after nearly 14 years in power, he faces an unprecedented electoral challenge to his autocratic regime. A previously weak and divided opposition, prone to political miscalculation, has set aside its differences to form a seemingly solid coalition of parties from the left and right, under the banner of the Democratic Unity coalition (MUD).