WASHINGTON (AP):

Democrat Hillary Rodham Clinton denied Monday that her presidential campaign was in trouble after she lost to Barack Obama in five weekend presidential nominating contests and replaced her campaign manager.

The New York senator also dismissed concerns that Obama had all the momentum going into the next round of contests. He is expected to sweep the so-called Potomac primary, today, when Maryland, Virginia and Washington DC cast votes, and is favoured to win next week in Wisconsin and Hawaii.

In the latest overall totals in The Associated Press count, Clinton had 1,136 delegates to 1,108 for Obama. The totals include so-called superdelegates, which are party leaders not chosen at primaries or caucuses, who are free to change their minds. A total of 2,025 delegates is required to win the nomination.