Unionists took different sides on the debates regarding devolution. Supporters argued that it would strengthen the Union, as giving Scotland self-government would remove the contention that independence was the only way to obtain control over internal affairs. Labour politician George Robertson said that devolution "will kill nationalism stone dead" for this reason. John Smith, a Labour leader who supported devolution, believed it was the "settled will" of the Scottish people. Unionist opponents of devolution argued that granting self-government would inevitably lead to the Union breaking, as they believed it would encourage nationalist sentiment and create tensions within the Union. Labour politician Tam Dalyell said devolution would be a "motorway to independence". His West Lothian question asked why MPs for Scottish constituencies should be able to decide devolved matters (such as health and education) in England, but MPs for English constituencies would have no say over those matters in Scotland.