Roosevelt Choose A Bull Moose As A Symbol For His New Progressive Party Because. The night that taft engineered his renomination, roosevelt and his supporters met in a nearby hall, pledging themselves to found a new party to continue the fight for reform. Republican progressives reconvened in chicago's orchestra hall and endorsed the formation of a national progressive party.

Nickname for the new progressive party, which was formed to support roosevelt in the election of 1912, the republicans were badly split in the 1912 election, so roosevelt. Republican progressives reconvened in chicago's orchestra hall and endorsed the formation of a national progressive party. When formally launched that summer, the new party chose.