[1] On losing his seat, he returned to the law, becoming a king's counsel and bencher of Lincoln's Inn.
[2][3] The office required him to hold a seat in parliament, and he was duly returned as member for Bletchingley on 18 February 1831.
[2] Parliament was dissolved in April of the same year, and in the ensuing general election he became member for Newton, Isle of Wight.
He resigned from the office in February 1834, returning to private practice, and did not stand at the subsequent election in 1835.
[2] Horne died at his London home, 49 Upper Harley Street, on 13 July 1860, aged 87.