According to The Guardian, Labour MP Tom Watson is the first UK MP to have a blog. In an example of the reverse process, Jim Capozzola of The Rittenhouse Review is planning a run for the US Senate.
I was also interested by this para
Currently Mr Watson is transferring content from the original site – tomatwestbrom.com – to his new blog, powered by transferable type, at tom-watson.co.uk.
I must investigate this “transferable type”.