Williams was first elected to the
Welsh Assembly on 1 May 2003 and was re-elected in 2007; serving until his death in 2011. He was Shadow Minister for Rural Affairs from 14 July 2007 and sat on the Sustainability, Rural Development, and
Standards committees. Williams had also been the Conservative spokesman for Environment, Planning and Countryside and Local Government in the Second Assembly (2003–07), during which time he was Chair of the North Wales Regional Committee. During his time in the assembly he carved out a role as a champion of farming and rural affairs. Following the news of his death, First Minister and
Welsh Labour leader,
Carwyn Jones described Williams as a "colourful" but "tough battler". Welsh Conservative leader
Nick Bourne said he was "immensely popular" across all parties and UK Prime Minister
David Cameron called him a "straight talker and a great loss to the assembly and to Wales". ==Personal life==