In 1908 he joined the reformist Southern League, and six years later was a co-founder of the Democratic Progressive Party, along with Lisandro de la Torre.

[1] On 23 July 1935, Lisandro de la Torre, Senator for Santa Fe Province, was announcing his opposition to the signing of the Roca-Runciman Treaty of 1933.

The end of the debate came when de la Torre left his seat and walked to the minister's table and fell when he was hit by Duhau.

[3] Bordabehere was picked up from the floor by several legislators and moved to a nearby room and later the Ramos Mejía Hospital, while being treated by the Senate doctor.

[1] The funeral took place at the local Police Headquarters, and he was buried at the El Salvador Cemetery, where there were numerous speeches by politicians, the press and members of Rosario's society.