More educated people are more likely to participate in politics in the USA
Postgraduates had a turnout of 80% in the 2016 presidential election, but turnout for those with less than high school qualifications was just over 30%
During the 2020 election, the name of Vice President Kamala Harris was often mocked openly even by fellow senators because of her Indian/Black Caribbean heritage
Ethnic minorities are more likely to live in poverty and so less likely to be able to afford to campaign or know people who would donate enough money to their campaign
A final reason why ethnic minorities are underrepresented in politics in the USA is because of the cost of US elections making it harder to get elected
The USA is one of the 5 permanent members of the United Nations Security Council, which means they can veto anything proposed by other countries in relation to maintaining international peace and security
For example, Donald Trump pulled out of the Paris Agreement designed to prevent climate change, and many scientists believed that this would make global warming inevitable