People are tired of spending more money on education than any nation in the world per capita.
The United States spends on average $12,731 per student on K-12 schools due to the most recent OECD study. Switzerland spends$15,891 and Norway spends $13,939 which makes the United States fall short of "any nation in the world per capita." Despite Norway and Switzerland having a smaller population than the United States it is clear they spend more on students per-pupil spending. The context of President Trumps claim is tied to fixing inner-city schools infrastructure.