NEW YORK—Amazon.com Inc. on Friday called for an election rerun after workers at a New York City warehouse voted to create the company’s first U.S. union, saying that the U.S. labor board and worker-organizers suppressed turnout. The Amazon Labor Union (ALU) rejected the allegations made by the online retailer that is the second-largest U.S. private employer. Amazon made its demand a week after the victory for organized labor. Some 55 percent of employees who voted from Amazon’s JFK8 warehouse in Staten Island opted to join the ALU, which has argued for higher pay and job security. Turnout was about 58 percent. Amazon spokesperson Kelly Nantel said in a statement: “We want our employees to have their voices heard, and in this case, that didn’t happen—fewer than a third of the employees at the site voted for the union.” Amazon also accused the ALU of intimidating workers and distributing marijuana to …