Malacañang has firmly rejected a proposal by former Senate President Alan Peter Cayetano for an interim leadership setup in the Senate, reiterating its support for acting Senate President Sherwin Gatchalian. Press Officer Claire Castro stated that introducing a dual-signatory arrangement for Senate transactions would lead to complications and uncertainty. This proposal comes amid a leadership change following the arrest of Senator Jinggoy Estrada, which disrupted Senate sessions. Cayetano has criticized the new leadership as an 'illegal coup d'état' and is pushing for administrative arrangements with Gatchalian's majority group. Castro cautioned that such setups could mirror past political agreements that became controversial, referencing a previous term-sharing agreement in the House of Representatives that Cayetano did not fulfill. The Palace emphasized that Gatchalian's election is consistent with legal precedents and that all communications regarding Senate leadership will continue through him.