Sterling slid to the lowest since June 28 in American trade against the dollar, following earlier data from Britain and the US, the world's largest economy.
As of 04:31 GMT, GBP/USD fell 0.44% to 1.2843 from the opening of 1.2900, with a two-month low at 1.2811, and a session-high at 1.2909.
Earlier UK data showed net public borrowing fell 0.8 billion pounds in July, compared to an increase of 5.7B in June, revised lower from 6.4B, while analysts expected no change.
The CBI Industrial Order Expectations index rose to 13 in August from July's 10, besting expectations of 8.
The British government released a new statement on the Brexit process, focusing on legal and legislative relations between Britain and the Union, and asserting that Britain will not more be under the authority of the European Court of Justice.
The statement expressed Britain's desire to continue the civil judicial cooperation between the kingdom and the union, matching similar negotiating principles on the European Union side.
Otherwise from the US, earlier data showed housing prices slowed down in June to 0.1% from a 0.3% increase in May, missing expectations of 0.5%, while the Richmond manufacturing index is expected to slid to 11 in August from July's 14.