2030 in Spain is impossible. There are too many parties involved in the event with very antagonic views. We have the central government (PSOE, social democrats and the ones who re-started the project), two regional governments (Aragon is led by PSOE, but they feel discriminated for not including the region or the city of Zaragoza in the official naming, and Catalonia, led by ERC, who are also very interested because they will use it as a political tool) and two local governments (Barcelona is led by En Comú Podem/Podemos, non-secessionist left/green party, which doesn't want to host the Games, and the Pirineus towns led by Junts, right secessionist party, who like the idea but they don't want to do it with the central government).
And then there is Madrid (PP, right) who already started to prepare the candidature for the 2036 Olympics but they can't make it official until the 2030 candidature fails. Alejandro Blanco is just playing games with the press.