Malolos was given its own congressional seat from Bulacan's 1st district by virtue of Republic Act 9591.

However, the Supreme Court ruled it unconstitutional, saying it violated Article VI Section 5 (3) of the Constitution and Section 3 of the Ordinance attached to constitution; Malolos was ruled not to have exceeded the 250,000 population for a separate legislative district.

Aniag and Domingo withdrew prior to the election, while independents Cruz and Valencia did not campaign.

He will face 2007 challenger and former three-term Guiguinto, Bulacan mayor Ambrosio "Boy" Cruz Jr.

His opponents are his son, Ricardo "Ricky" Silverio, Jr. and the current governor of Bulacan: Joselito Mendoza.

The results: San Jose del Monte is a component city of Bulacan.

[2] All 4 Districts of Bulacan will elect Sangguniang Panlalawigan or provincial board members.

An additional three more members will be selected from the provincial chapter of the barangay captains, Sangguniang Kabataan, and the sectoral representative.