However , the debate and the reception accorded to Mr Lawson 's speech was a striking demonstration of the Conservatives ' capacity to close ranks : proof , if proof were needed , of their party 's most formidable political resource .
However , the debate and the reception accorded to Mr Lawson 's speech was a striking demonstration of the Conservatives ' capacity to work together : proof , if proof were needed , of their party 's most formidable political resource .