He tirelessly battled political corruption, championed the creation of the Panama Canal, wrote 35 books despite his own dodgy spelling abilities and, when he realized he had left politics at too early an age, created a third political party, the Bull Moose Party
, to run for a third term in office.
Skidmore's very readable history of Social Security is most interestingly a history of those who have opposed it--from the time of its inclusion in the Bull Moose Party
platform through its passage in 1935 (and the ensuing fire storm in the '36 presidential election), from the anti-Medicare campaign to the more recent privatization movement.
But Taft was fundamentally more conservative than Roosevelt, and offended not only his old friend, but numerous progressive voters; he ran unsuccessfully for a second term against Woodrow Wilson and against Roosevelt, who had founded the Bull Moose party
in anger against Taft.