He wanted to run again. but the two political parties all ready had canadates so he created the Bull Moose party.
He was not satisfied with William Taft's job as president.
progressive party
The Progressive Party was a party created by Theodore Roosevelt in 1912. When he didn't receive the support of the Republican party for the presidential election, and William Taft was supported instead, Roosevelt formed his own party, the Progressive Party. It was mostly made up of Republicans who supported Roosevelt over Taft.
Theodore Roosevelt. When he failed to wrest the Republican presidential nomination away from Taft, Roosevelt and his supporters quit the Republican party and started their own party, so Roosevelt could run for president anyway.
He was a Republican then in the 1912 election he created his own party known as the Bull Moose party
Theodore Roosevelt started his own political party, the Progressive Party, in 1912 after becoming disillusioned with the Republican Party's shift away from progressive reforms. He believed that the party had abandoned its commitment to addressing issues like corporate power and social justice. His decision to run as a third-party candidate was also fueled by his desire to promote a platform focused on progressive ideals, including labor rights and environmental conservation, which he felt were being neglected. Ultimately, Roosevelt aimed to reinvigorate American democracy and challenge the status quo.
How did Roosevelt hurt the Republican Party?
You seem to have answered your own question.
Woodrow Wilson won the Presidential election in 1912 due to Theodore Roosevelt's decision to start his own party. Roosevelt didn't get the Republican nomination so he broke off and created the Progressive Party.
Theodore Roosevelt failed to win the Republican nomination in 1912 and he wanted to be President, so he formed his own party and ran against the Republicans and Democrats.
he did not lose he won the election because he made his own party called the bull moose party.
Theodore Roosevelt started the Progressive Party.