The present study explores the interplay of evaluation and transitivity in an American and Spanish parliamentary debate by President Obama and PM Rajoy aiming at legitimizing their actions and at convincing candidates to vote for them in the upcoming elections. A further objective is to investigate whether the transitivity and appraisal analyses illustrate the politicians’ ideological positions. Within the general framework of Systemic Functional Linguistics (SFL), we use the results obtained for Appraisal following Martin and White’s appraisal scheme [Cabrejas-Peñuelas, A. B. (2020). Metaphor, metonymy and evaluation as political devices in American and Spanish parliamentary political discourse. Ibérica, 40, 75–99] and add a study of the interplay with transitivity [Halliday, M. A. K., & Matthiessen, C. M. I. M. (2014). Halliday’s introduction to functional grammar. Routledge]. The results reveal that both politicians used transitivity differently: Obama used mental desiderative processes for expressing desires and showed the active role of ‘us’ to bring about positive changes. In contrast, Rajoy preferred relational, verbal and existential processes. These contribute to his particular picture of reality, which is ideological in nature. Also, the results show that evaluation and transitivity were used as an ideological tool for persuasion and legitimization of the politicians’ economic decisions.