Established here his courts of chancery and exchequer and the great sessions for South Wales.
An ardent opponent of Catholic Emancipation, he delivered in 1807 a speech on the subject which helped to give the deathblow to the Grenville administration, upon which he became chancellor of the exchequer under the duke of Portland, whom in 1809 he succeeded in the premiership. Notwithstanding that he had the assistance in the cabinet of no statesman of the first rank, he succeeded in retaining office till he was shot by a man named Bellingham, a bankrupt with a grievance, who had vainly applied to him for redress, in the lobby of the House of Commons on the 11th of May 1812.
His plans were foiled by the courage of Arminius and the inability of the Roman exchequer to pay a larger army.
He was incessantly on his legs in committee, and became a name for an opposition bandog who gave chancellors of the exchequer no peace.
It established the chancellor of the exchequer as the paramount financier of his day, and it was only the first of a long series of similar performances, different, of course, in detail, but alike in their bold outlines and brilliant handling.