Britain's most senior judges will rule if Theresa May has the power to trigger the formal process for the UK's exit from the European Union.
Flood-Hit Areas Face More Wet Weather
Flood-hit communities are facing the prospect of more heavy rain as the clean-up continues after the devastation wreaked by Storm Desmond.
The Met Office has issued severe weather warnings for rain and wind across northern England and Scotland, with gusts of up to 70mph predicted.
The Environment Agency said one severe flood warning, indicating there is a risk to life, remained in place for the River Wyre at St Michaels, Lancashire, while there were 20 less serious flood warnings and 29 flood alerts.
A band of rain forecast overnight has brought the potential for further disruption across Cumbria, the county worst hit by the extreme weather, as well as parts of Lancashire and North Yorkshire, the EA added.
Flood warnings may be reissued for Appleby, Carlisle, Keswick, Cockermouth and Kendal but rivers are not expected to return to levels observed last weekend, it said.
Up to 80mm (3.15in) of rain could fall locally in the highest parts of Scotland and north-west England, while 20-40 mm of rain is expected more widely, the Met Office said.
But forecasters have said there should be no repeat of the record rainfall totals seen last weekend, when Cumbria saw more than a month's worth of rain in a day.
US President Donald Trump resigned as director of five British companies the day before his inauguration.
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Projects helping young Scots to take greater control of their futures are to share more than £800,000 in lottery funding.
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