US Republican presidential candidate George W. Bush claimed the first three states of Indiana, Kentucky and Georgia in the 2004 elections on Tuesday, winning a total of 34 electoral votes, CNN said, citing exit polls.
Kerry won Vermont with 3 electoral votes.
The four states were among the first in the nation to finish voting, with polling stations closing there at 7:00 p.m. (0000 GMT).
A candidate needs a total of 270 electoral votes to win the presidency.