Aragorn's political skills.

[the phantom]

Was it Aragorn's political skills that truly helped him become king?

Well, lemme see here.... how did old Strider win the support of the people of Gondor?

Aragorn served under Denethor's pop as Thorongil, right? Wasn't he loved by both the steward and the people at that time?

I wonder how many people supported Aragorn because he was Thorongil, who was supported by their parents or grandparents?

Or did anyone even know this?

And he also healed people, including Faramir (who everyone seemed to love). That earns some support.

Plus he had the friendship of Gondor's greatest ally, Rohan (or more specifically, Eomer).

And he rescued Minas Tirith from Sauron's forces. That couldn't have hurt people's opinion of him.

He was also supported by the Prince of Dol Amroth. Sort of like when a candidate gets an endorsement.