Tuesday will be an important day in the political career of Hillary Clinton.

The former first lady and current senator from New York must win elections in the states of Ohio and Texas if she is to have any chance of becoming president.

If she loses, then she will probably drop out of the presidential race. This will make Barack Obama, a senator from Illinois, the candidate for the Democrats.

Senator John McCain from Arizona is the candidate for the Republicans.

Nobody expected Hillary Clinton to win yesterday’s primary election in the American state of New Hampshire.

(A primary election is held in each American state to decide who will be the presidential candidate for each party.)

Mrs. Clinton is a Democrat. John McCain won the Republican primary.

Barack Obama was expected to win the Democratic primary on Tuesday.