PUBLISHED: 16:59, Sat, Jan 9, 2021 | UPDATED: 17:17, Sat, Jan 9, 2021
Ms Miller launched her attack after Commons Leader Jacob Rees-Mogg ordered the closure of a cross-party Commons committee set up to examine Britain’s relations with the EU. The decision has led to allegations that Mr Rees-Mogg has deliberately tried to undermine parliamentary scrutiny of the Trade and Cooperation Agreement (TCA) that was finally secured on Christmas Eve with Brussels.
More and more examples of Boris Johnson's Government's power-grabbing
Ms Miller tweeted: "Government accused of undermining EU trade deal scrutiny as Jacob Rees-Mogg shuts down Commons Brexit committee.Insurance Loans Mortgage Attorney Credit Lawyer
"More and more examples of Boris Johnson's Government's power-grabbing, dismantling of Parliament's sovereignty and our representative democracy. People wake up!"
The businesswoman and activist has been a prominent and outspoken opponent of the Government.
Gina Miller (Image: PA)
She won a legal bid against the UK Government over its authority to implement Brexit without approval from Parliament in 2016 and in September 2019 successfully challenged Boris Johnson's prorogation of Parliament.
Her latest attack on the Government comes after critics claimed Mr Rees-Mogg's move blocked a planned six-month inquiry into the Trade and Cooperation Agreement and also means there is no longer a Commons committee to monitor the implementation of the deal.
Mr Rees-Mogg rejected an appeal from the Committee on the Future Relationship with the European Union - formerly the Committee on Exiting the EU - for a six-month extension beyond its planned closure date of 16 January in order to allow time for an inquiry into the Christmas Eve deal.
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Jacob Rees-Mogg is accused of blocking