"When Americans take part in November's presidential election, most of them will cast a vote for either Democrat Kamala Harris or Republican Donald Trump.
But those votes don't directly determine who wins. Instead of a national race it's a state-by-state race.
Winning one of the 50 states means that candidate collects all the so-called electoral college votes.
There are 538 electoral college votes in total.
A candidate needs to gain a majority of the votes - 270 or more - to win the presidency."
"In some states, electors can "theoretically" vote for whichever candidate they prefer, regardless of who voters backed.
In 2016, Donald Trump beat Hillary Clinton after polling almost three million fewer votes.
In 2000, George W Bush defeated Al Gore even though the Democratic candidate won the popular vote by more than half a million.
The BBC educates us.
"When Americans take part in November's presidential election, most of them will cast a vote for either Democrat Kamala Harris or Republican Donald Trump.
But those votes don't directly determine who wins. Instead of a national race it's a state-by-state race.
Winning one of the 50 states means that candidate collects all the so-called electoral college votes.
There are 538 electoral college votes in total.
A candidate needs to gain a majority of the votes - 270 or more - to win the presidency."
"In some states, electors can "theoretically" vote for whichever candidate they prefer, regardless of who voters backed.
In 2016, Donald Trump beat Hillary Clinton after polling almost three million fewer votes.
In 2000, George W Bush defeated Al Gore even though the Democratic candidate won the popular vote by more than half a million.
Read the rest of the analysis.
https://www.bbc.com/news/world-us-canada-53558176