WASHINGTON—The health of American democracy depends in part on marshaling the science and practice of innovation to bolster faith in the legitimacy of government by improving its effectiveness, according to a new report from the Information Technology and Innovation Foundation (ITIF), the country’s leading science and technology think tank. In the report, ITIF proposes a detailed set of recommendations for the White House Office of American Innovation to transform the enterprise of government by applying customer-driven innovations to federal processes, services, and organizational models.