Complex sentence: Loyal to the government, Rees nevertheless stood up for Swansea against the prospect of Port Talbot steelworks taking all of South Wales' investment; he also defended his constituents who had their homes on a leasehold tenure.
Split into simpler sentences: Loyal to the government, Rees nevertheless stood up for Swansea against the prospect of Port Talbot steelworks taking all of South Wales' investment. He defended his constituents who had their homes on a leasehold tenure.