Similarities between Teddy Roosevelts split with Republicans and his Bull moose party vs. todays Republican presidential selection are uncanny. Roosevelt was considered brash in his day too.

Paste from Wikapedia

Roosevelt far outpolled Taft in the primary elections which were held in a few of the more progressive states. But Taft had worked far harder than TR to control the Republican Party's organizational operations and the mechanism for choosing its presidential nominee at the 1912 Republican National Convention. So, despite Roosevelt's last-minute attempt to block Taft's re-nomination, the party re-nominated Taft in June.[3]