It was his tour de force performance at Labour's conference in 1994 which helped to swing the party behind Blair's constitutional reforms, including the revision of Clause IV.

BBC: John Prescott

There will be no clause for revision.

BBC: Germany: Nuclear power plants to close by 2022

If a company doesn't meet the nexus requirement, the Supreme Court would have to change its opinion-a painstakingly slow and unlikely course of action-or Congress would have to make a revision under the Interstate Commerce Clause in order to tax the company's e-commerce sales.

CNN: The Internet tax revolt