Senator-Judge Erwin Tulfo clarifies that the threshold to convict Vice President Sara Duterte remains two-thirds but it will be based on senators who are 'legally and factually' able to take part when the court votes on the case. Speaking to reporters on Sept. 23, 2026, Tulfo said his motion during the impeachment proceedings was focused on determining which senators could participate in the vote, rather than changing the constitutional requirement for conviction.