In December 1945, the House Insular Affairs Committee of the United States Congress approved the joint resolution, setting the election date by April 30, 1946.

Prompted by this congressional action, President Sergio Osmeña called the Philippine Congress to a three-day special session.

On January 22, 1946, Eulogio Rodriguez was nominated as Osmeña's running mate for Vice President in a convention held at Ciro's Club in Manila.

According to the Manila Chronicle:The convention opened at 10:15 in the morning when the acting secretary of the party, Vicente Farmoso, called the confab to order.Congressman Jose C. Romero, who delivered the keynote speech, accused Senate President Manuel Roxas and his followers of fanning the flames of discontent among the people, capitalizing on the people's hardship, and minimizing the accomplishment of the [Osmeña] Administration.

[1]On January 19, 1946, Senator Roxas announced his candidacy for President in a convention held in Santa Ana Cabaret in Makati, Rizal.

According to the Manila Chronicle: ...more than three thousand (by conservative estimates, there were only 1,000 plus) delegates, party members, and hero worshipers jammed into suburban, well-known Santa Ana Cabaret (biggest in the world) to acclaim ex-katipunero and Bagong Katipunan organizer Manuel Acuña Roxas as the guidon bearer of the Nacionalista Party's Liberal Wing.

According to the "controversial" decision of the Electoral Tribunal of the House of Representatives on Meliton Soliman vs. Luis Taruc, Pampanga "was under the terroristic clutches and control of the Hukbalahaps.

President Osmena chose not to actively campaign, saying the Filipinos knew his record of 40 years of loyal service to the country.