Downing Street has published details of the "private" dinners hosted by the Prime Minister for Conservative Party donors, and it emerges that one of the first people to receive an invitation to Downing Street was Staffordshire businessman Sir Anthony Bamford, chair of JCB.
Sir Anthony and wife Carole, Lady Bamford, were guests at a dinner at 10 Downing Street on July 14 2010, along with 13 other people. His individual donations and donations from JCB come to more than £400,000 in total.
JCB also donated £25,000 to the "no" campaign opposing the alternative vote, and £7,500 to David Davis in 2005, apparently to help fund his party leadership bid (Mr Davis stood unsuccessfully gainst Mr Cameron).