Molesworth was returned unopposed in February 1784 and at the general election. In Stockdale’s list of 19 Mar. and Adam’s of May, he was classed as ‘Administration’, and on 24 May seconded the Address. But he voted with Opposition on Richmond’s fortifications plan, 27 Feb. 1786, and the Regency, 1788-9. As appears also from his speeches, which became more frequent towards the end of his time in Parliament, he was essentially independent. On 2 May 1787 he declared that he supported a tax ‘because he thought it was a good tax. Could it be proved to the satisfaction of his mind that it was not so, he should oppose it.’
In September 1789, when it became clear that Molesworth would be opposed at the general election, he declined entering into the contest, saying: ‘You called me unsolicited on my part to be your representative, and if you no longer wish for my services I am ready to return to the private situation from whence you took me.’
