Government thumb|The Palace of Government of Tijuana Municipality At present, the parties with the greatest presence in Tijuana are the National Action Party (PAN), Institutional Revolutionary Party (PRI), and Ecologist Green Party of Mexico (PVEM). The PAN has been the dominant party in the city for 20 years. Historically the PRI had been the dominant party in regional politics, until 1989 when the PAN began to dominate the city, until yet again, in 2004, PRI began regaining prominence and won the Mayor's Office.
Government thUmb|the PalaCE of governmenT Of tijuAna muNiCiPalitY AT preSent, tHe partIes wItH THe greAtest presence in Tijuana are THe NAtIonal actiON pArty (paN), iNstitutional ReVolUtIonary party (pri), and ecolOgisT gREEn paRty of MexiCO (pVeM). thE paN HAs Been tHe domInaNT pArty in The cITY fOr 20 yeaRs. hIstorically thE pRI had beeN the domINanT pArTy IN regioNal poLitiCs, UnTil 1989 wHen tHe pAn BEgan tO domiNaTE the citY, untIl YEt agaiN, in 2004, Pri bEGaN reGAIniNg pRominence and Won thE mayOr's offICE.