Amend the constitution to abolish the Electoral College.
Hold presidential elections based on popular vote. One person one vote to determine the one leader who is supposed to answer to all the people of the country.
The framers of the U.S. Constitution created the idea of the 'Electoral College' to ensure that no state had too much power in deciding presidential contests. However, due to racial and geographic breakdowns, the system now gives disproportionate influence to rural white voters, while people of color tend to be over-represented in (safely) "blue" or "red" states.
To abolish the Electoral College the U.S. would have to pass a constitutional amendment. This process typically requires two-thirds of the House and Senate to vote on a proposal, which 38 states must then ratify.