President Barack Obama has described a series of budget cuts totalling $85 billion as "dumb and arbitrary".
The measures are set to come into effect at 11:59pm tonight after congressional leaders failed to reach agreement on how to tackle the deficit.
There are fears the series of automatic cuts - known as sequestration - could damage US economic growth and lead to hundreds of thousands of job losses.
ITV News Washington Correspondent Robert Moore reports:
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The Duke and Duchess of Cambridge met young people who have battled mental health issues on Saturday.
Former Chancellor Lord Geoffrey Howe was Margaret Thatcher's longest-serving Cabinet minister, also taking on the role of Foreign Secretary.
Lord Geoffrey Howe is known by many for his resignation speech which was seen as the catalyst which destroyed Margaret Thatcher.