On April 3, 2023, the Supreme Court of the Philippines denied the motion of reconsideration filed by Makati to override its earlier ruling that upheld the 2011 Pasig Regional Trial Court ruling that recognized Taguig's jurisdiction over the ten Embo barangays, resulting in Makati formally ceding control of the barangays to Taguig.

[1] The Commission on Elections (COMELEC) began the administrative transfer of the 212,613 Embo voters and electoral precincts from Makati to Taguig in August 2023, ahead of the 2023 Philippine barangay and Sangguniang Kabataan (BSKE) elections, where Embo residents voted as residents of Taguig for the first time.

[2][3][4] In the Embo barangays, the 2023 BSKE elections resulted in widespread defeat for candidates affiliated with the ruling Cayetano family.

144 to the Supreme Court, arguing that the city council had no authority to increase the number of seats, but rather that power belonged to Congress by passing a statute, and not a resolution.

[19] To seek the office, Binay would need to resign as mayor of Makati to establish at least one year of residency in Taguig to be eligible for the post.

[20] On January 9, 2024, Binay remarked that she is "waiting for a sign" for her to push through with her campaign in Taguig;[20] she indicated that she would finalize her decision by March 2024.

[21][22] Manuel L. Quezon III of the Philippine Daily Inquirer described Binay's potential campaign for mayor of Taguig as a "dynastic invasion" motivated by Makati's loss of the Embo barangays.

[23] Since her announcement, Binay has not resigned her post, making a mayoral bid less likely as she is instead being considered as a senatorial bet by the administration coalition.

[24] It was later confirmed that she will run for senator in 2025 when she was named to the senatorial slate of Alyansa para sa Bagong Pilipinas.

[25] Meanwhile, political strategist Lito Banayo revealed that former mayor Lino Cayetano, brother-in-law of the incumbent, may challenge for the mayor's seat after reportedly getting the backing of two important factions in local politics: the Zamora family (including second district representative Pammy Zamora, daughter of former San Juan representative Ronaldo Zamora) and the Tiñga family (including former mayor Sigfrido Tiñga), potentially forming an alliance between a Cayetano and several of their political enemies.

The Taguig City Council is currently composed of 18 members, 16 of which are elected through plurality block voting to serve three-year terms.

The first city council district is composed of the city's eastern barangays, namely Bagumbayan, Bambang, Calzada, Hagonoy, Ibayo-Tipas, Ligid-Tipas, Lower Bicutan, New Lower Bicutan, Napindan, Palingon, San Miguel, Santa Ana, Tuktukan, Ususan and Wawa.

On October 30, 2024, the Comelec rejected the transfer of residency to the district by Lino Cayetano after the filing of certificates of candidacy have ended, but the poll body noted that the former mayor can still avail of legal remedies, and speculation about his disqualification is "premature".