He attended the University of North Carolina at Chapel Hill from 1906 to 1908 and then from 1911 to 1912 (the second time studying law).

[2] In 1923, Warren was sent to the North Carolina House of Representatives for a single term before being elected, in 1924, to the 69th United States Congress.

He was re-elected seven times, serving in the U.S. House of Representatives from March 4, 1925 until November 1, 1940, when he resigned from Congress.

Warren left Congress to accept the post of Comptroller General of the United States, serving in that role for almost fourteen years, until May 1, 1954.

[4] A 2.8-mile bridge, one of the longest in North Carolina, was built in 1960 over the Alligator River and is named in honor of Warren.