lloyd was returned on petition as a whig member of parliament for cardigan boroughs on 7 may 1730. he was re-elected at the 1734 british general election. he voted with the administration in all recorded divisions except that on the repeal of the septennial act, when he voted against them. he was defeated at the 1741 british general election and after petitioning repeatedly, his petition was finally dismissed on 23 january 1746.