Article published on the 2008-11-02 Latest update 2008-11-03 11:07 TU
This represents a sharp rise on early voting figures in 2004 when only 20 per cent of registered voters used the early voting option.
Campaigning by the two principal candidates continued this weekend.
Barack Obama's team released a new advertisement that emphasises McCain's endorsement by Vice-President Dick Cheney, trying to exploit the low levels of popularity of the current administration.
The campaign manager of McCain was predicting a comeback saying that the Republican candidate was "increasing his margins in almost every state in the country".
RFI's David Page talked to voters in New Mexico to see what they think of early voting.
2008-11-02