Former President Theodore Roosevelt started a third party called the Progressive Party (famously nicknamed the Bull Moose Party) when he lost the Republican nomination in 1912. And while he didn ...

TR's delegates refused to vote, then walked out. During the following two months, they formed the Progressive, or Bull Moose, party and chose TR as their presidential candidate. The 1912 ...

Governor Hiram Johnson joined the ticket as running mate, building up the Progressive base within the California Republican Party. This new movement, popularly called the “Bull Moose Party ...

In the middle and appealing to the reform-minded majority of Americans was former president Theodore Roosevelt, nominated by the newly founded Progressive Party, also known as the Bull Moose Party.