[2] He was returned to parliament for Bridgwater in 1741, a seat he held until 1747.
In 1771 he was appointed Lord Lieutenant of Devon,[4] which he remained until his death.
Lord Poulett married Mary Butt, daughter of Richard Butt, of Arlington, Gloucestershire.
Their younger son the Honourable Vere Poulett was a soldier and politician.
Lord Poulett died in April 1788, aged 77, and was succeeded in the earldom by his elder son, John.