History of New York City (1898–1945) overthrown in 1933 by reformers who elected and repeatedly re-elected Fiorello La Guardia. Heavy federal patronage helped convert the city to a stronghold of the New Deal Coalition and the model of heavy government spending on infrastructure. The modern five boroughs, comprising the city of New York, were united in 1898. That year, the cities of New York—which then consisted of present-day Manhattan and the Bronx—and Brooklyn were both consolidated with the largely rural areas of Queens and Staten Island. The total population was 3.4 million in 1900, leaping to 5.6 million in 1920 and leveling off at 7.9 million
Staten Island Tunnel funded by the city, the tunnel was expected to help expand the then-sparsely populated borough in a similar manner to the population and development explosions seen in Brooklyn and the Bronx. Under the Dual Contracts, three routes were proposed—two to Brooklyn and one to Manhattan—which would connect the Staten Island Railway's rapid transit service (SIRT) to existing subway lines. The Manhattan proposal, often called the "direct route," would have connected with the Interborough Rapid Transit Company (IRT)'s lines under Battery Park, near the current Brooklyn–Battery Tunnel. "Direct Route A" would have utilized a five-section tunnel under the New York Harbor,