Nicolás Maduro has been declared as the winner in Venezuela’s presidential election, even as his opponents were preparing to dispute the results. That decision sets up a high-stakes showdown that will determine whether the South American nation transitions away from one party rule. Shortly after midnight on Sunday, the National Electoral Council said Maduro secured 51% of the vote, overcoming the main opposition candidate, Edmundo González, who garnered 44%. However, the electoral authority, which is controlled by Maduro loyalists, didn’t immediately release the tallies from each of the 30,000…