In contrast, no member of Gordon Brown's Labour cabinet has so far entered into a civil partnership, although a few Labour MPs have done so.
Mr Herbert has the full support of his constituency association; according to Malcolm Gill, the association chairman in the Arundel and South Downs constituency represented by the MP:
"The reaction among activists has been very favourable. We have a well-respected MP and Jason is very popular, too. We are delighted for both of them."
This is a very welcome reaction in what is by any standard one of the more 'true blue' Conservative constituencies so is perhaps a sign that the Conservative Party really is changing.