The exact figure of 64% for support of transgender people's rights was not explicitly found in the retrieved sources; the primary Eurobarometer source states that 'around two-thirds of respondents approve of equal rights for lesbian, gay and bisexual people, and for transgender people'.
The Eurobarometer data retrieved describes the period April–May 2023 (published December 2023), which is more than two years before the session date of 2026-07-06; a more recent Eurobarometer on discrimination (fieldwork January–February 2025, published 2025) appears to exist and likely contains updated figures the MEP could have cited, but it could not be retrieved within the search limit.
The phrasing 'believe in trans rights' is a paraphrase of the Eurobarometer question on whether transgender people should have the same rights as other people; the claim was made without citing a specific source or period.
The supporting source for the sibling figure (72% same-sex marriage support) is a secondary source (ILGA-Europe) and its exact publication date is unknown.