Jackson argued that he was the President of the People primarily to justify which of the following?

Jackson's assertion that he was the President of the People served as a justification for his use of veto power. He believed that the president should be a direct representative of popular will and that it was his duty to protect the interests of the common citizen. This philosophy allowed him to justify his frequent use of the veto against legislation that he believed did not align with the interests of the people or that favored elite interests over those of the broader population. His approach marked a significant shift in how the presidential role was perceived, emphasizing a more direct connection between the executive branch and the general public.

In contrast, the other options do not closely connect with the argument of being the President of the People. His foreign policy decisions were driven by strategic interests rather than a direct appeal to popular sentiment. Similarly, while his appointments of Supreme Court justices were significant, they were often based on political loyalty or ideological alignment rather than a populist mandate. Funding infrastructure projects could be seen as beneficial to the people, but it does not specifically correlate with his argument regarding his presidential identity as a representative of the populace.