Five closest US elections: When California, New York were swing states

Poll workers wait to escort voters to the polling booths during the first day of in-person early voting at the Franklin County Board of Elections in Columbus, Ohio, the United States [File: Paul Vernon/AP]

Voters across 50 states in the US are casting ballots to choose the 47th president of the country in an election that has turned into a neck-and-neck battle between the two main candidates.

So far, election analysts say this year’s presidential race between Vice President Kamala Harris and former President Donald Trump is too close to call.