 Complete the following phrase:  During this era of liberalization, Vargas founded two parties: the Social Democratic Party PSD, a centre-right party composed primarily of the national industrial bourgeoisie which had supported Vargas and Vargas interventors in the states, and the Brazilian Labour Party PTB composed of the urban working class and trade union movement. The PSD would become the largest party of the two, although Vargas used the PTB as his personal machine. The PSD consistently had the largest number of deputies until the 