WASHINGTON: `President Obama has never needed you more,` says a message the Democratic Party sent to its supporters on Monday as the latest email scandal threatens to sink their candidate, Hillary Clinton.

`I won`t sugar-coat it, we could fail,` warned former House speaker Nancy Pelosy. `Be recognised,` says Vice President Joe Biden, askingDemocrats to donate time and money.

Although the party has been successfully soliciting funds for Hillary Clinton since the current election cycle began, the latest messages have a sense of urgency missing from their previous appeals.

As a new public frenzy gripped the American nation, Mrs Clinton lost more than 10 points in popularity ratings within days, narrowing her 12-point lead over her rival, Donald Trump, to 4.3 points.