In 1741, he was elected
Member of Parliament (MP) for
Cricklade, then moved to
Weymouth and Melcombe Regis (1747–1761),
Aylesbury (1761–1768),
Petersfield (1768–1774), Weymouth and Melcombe Regis (1774–1790) and Petersfield (1791–1794). In 1762, he succeeded
Charles Townshend as
Secretary at War, and in 1763, he proposed the appropriation of twenty army
regiments to the
colonies of America. In
Parliament, with many others, he opposed the reception of papers from the American
Continental Congress. He became
Treasurer of the Navy in 1777, then succeeded to the
Colonial Secretaryship in 1782, which he held for a matter of months, before the American colonies were lost. In 1784, he became the longest-serving member of the
House of Commons (having served for 43 years non-continuously), becoming the honorary
Father of the House. He was created
Baron Mendip, of Mendip in the County of Somerset, in 1794 in recognition of his governmental service. The peerage was created with remainder to the three eldest sons of his sister Anne by her husband Henry Agar, of
Gowran and
Gowran Castle. ==Personal life==