[5] At the 1835 General Election, the Carmarthen Boroughs constituency had been captured by the Conservative candidate, David Lewis, who defeated the former member, W.H.
As the prospect of a new general election became more likely in January 1837, Morris issued an address declaring his intention to offer himself as a candidate, in opposition to Lewis, in response to a requisition from many of his friends and colleagues.
[6] During the following weeks, it was alleged that efforts were being made, notably by the Carmarthen Journal, to persuade Yeleverton, the previous member, to oppose Morris on the grounds that his political views were too radical.
[7] Although Morris held broadly Liberal views his political opinions were subordinated by his belief that his first duty was to represent his constituents, and in this regard he was a diligent member of the Commons who was rarely absent from divisions.
On this occasion he declared in his speech accepting the nomination for a further term that he had sought to represent the sentiments of the electors by voting for reductions in the civil list payments to the royal family, in favour of abolishing flogging in the army, the total abolition of slavery and the mitigation of the most drastic impacts of the Poor Law legislation.
[12] During his later years, Morris moved closer to supporting the radical wing of the Liberal Party, including the extension of the franchise, introducing the secret ballot and the abolition of church rates.