Following Tanzania’s October 29, 2025 General Election, opposition parties have made notable gains by capturing seven parliamentary constituencies across the country, signaling renewed competition in areas previously dominated by the ruling Chama Cha Mapinduzi (CCM).
According to preliminary results, ACT Wazalendo emerged as the strongest opposition force, securing five out of the seven constituencies won by the opposition, while CHAUMA and CUF recorded minimal influence.
In Ukonga Constituency in Dar es Salaam, Mr. Bakari Shingo of ACT Wazalendo unseated Jerry Silaa, a prominent CCM politician and former cabinet minister, marking one of the most high-profile upsets of the election.
In Segerea, Ms. Agnesta Kaiza of CHAUMA defeated Ms. Bona Kamoli of CCM, becoming the first CHAUMA candidate to win a parliamentary seat in Dar es Salaam since the party’s establishment.
Down south in Tunduru, Mr. Addo Shaibu of ACT Wazalendo defeated incumbent Hasan Kungu of CCM, consolidating the party’s growing influence in the southern regions.
In Kigoma North, Ms. Kiza Mayeye claimed victory over Peter Serukamba of CCM, a former Iringa Regional Commissioner and seasoned politician. The result underscores Kigoma’s continued tradition of supporting opposition figures.
On the Isles, Mtambile Constituency in Pemba was won by Mr. Said Ibrahim Mzimba of ACT Wazalendo, reclaiming the seat from Mr. Seif Salim Seif of CUF. The seat had experienced political shifts following CUF’s internal conflicts earlier in the year, which saw Seif expelled and later defecting to CCM in June 2025.
In Nkasi North, Mr. Mbwillo of ACT Wazalendo took the seat after Ms. Aida Kenani of CHADEMA did not contest, following the party’s disqualification by the Independent National Electoral Commission (INEC) ahead of the election.
Similarly, in Nkasi South, ACT Wazalendo continued its winning momentum, taking the seat from Mr. Vincent Mbogo of CCM.
Political observers say the results indicate a shift in voter sentiment in select constituencies, particularly where local issues and candidate profiles outweighed party loyalty. While CCM retained a dominant majority nationwide, ACT Wazalendo’s improved performance suggests growing political diversity and renewed public appetite for competitive multiparty politics in Tanzania.