The Battleground States Biden and Trump Need to Win 270

The 2020 presidential race will be decided by voters in a dozen competitive states, where Joe Biden and Donald Trump will focus their efforts to win the 270 electoral votes needed to reach the White House. In the interactive diagram below, try building your own coalition of states, which are organized according to Cook Political Report ratings, to see potential outcomes.

The bottom line in all possible scenarios: Mr. Trump will need to win some of the states that are currently leaning toward Mr. Biden to reach 270 electoral votes. But he can afford to lose some of the states that he won in 2016 and still win a second term. Here’s a look at the latest ratings for each state, the electoral votes in each, and the vote margins from the 2016 election.