Hypercapital wrote:Teddy isn't even a Rep. He was a Progressive/Bullmoose (his own party), and in that regard, a third-party.
Theodore Roosevelt ran for the vice-presidency in 1900 as a Republican. He became president as a Republican following McKinley's assassination. He successfully ran for election for a second term in 1904 as a Republican. Throughout his presidency he represented the Republican Party. By any measure, he was a Republican president.
He subsequently attempted to run for a third term in 1912 on the Progressive Party ticket, but this doesn't change the fact that he represented the Republican Party as president.
Similarly, Millard Fillmore was a Whig Party president from 1850-1853 (indeed, the last Whig president) even though he subsequently sought election on the American Party ticket in 1856, and Martin Van Buren was a Democratic Party president from 1837-1841 even though he subsequently sought election on the Free Soil Party ticket in 1848.