Matters came to a head in a clash between Lawson and Prime Minister Margaret Thatcher's economic adviser Alan Walters, when Walters claimed that the Exchange Rate Mechanism was "half baked".
Problemos prasidėjo kilus nesutarimams tarp Lawson ir Margaret Thatcher ekonomikos patarėjo Alan Walters, teigusio, jog valiutų kurso mechanizmas esantis „žalias“.