Running a country is not like being a real estate developer or being a governor, Marco Rubio said Friday, firing back on the notion that his political career, and degrees of experience for that matter, are a liability rather than an asset.

During an interview with NBC News, the freshman Florida senator brushed aside concerns that he is “too scripted” and made his case for being the best Republican candidate, arguing that he gives the party the best chance to unify and expand the party and defeat Hillary Clinton in the general election.

He went on to add that “no one running for president is better prepared, has more experience, has shown better judgment, or better understanding than I have, and that is the most important job of a president.”