Ashworth was educated at The King's School, Canterbury, and studied agriculture and management at Seale-Hayne College in Devon. He has been the chairman of a further education college for a number of years as well as serving on several public bodies in the education sector. His interests include music, theatre, sport, aviation and country pursuits. He was the Conservative parliamentary candidate for North Devon in 1997, and for the South East constituency in the 1999 European Parliament election. Before being elected in 2004, Ashworth was a dairy farmer in East Sussex for over thirty years, and during this time operated his own dairy business. He has also acted as chairman of United Milk Plc and of NFU Corporate. He was a member of the Minister of Agriculture's food chain advisory committee.
Conservative MEP
He was elected to the European Parliament in 2004 and became the Conservative Spokesman on budgets. On 6 June 2008, Ashworth was appointed Conservative Chief Whip in the EP after his predecessor Den Dover was sacked following an expenses scandal. He was elected Deputy Leader of the Conservative Delegation to the European Parliament in November 2008 and Leader in 2012. At the first stage of the Conservative Party reselection procedure ahead of the 2014 European Parliament election, he was not confirmed for going into the protected sitting members part of the ballot. This was seen as a coup by the right of the Conservative Party against their MEP leader, who was seen as being close to Cameron and a moderate on Europe. Ashworth and fellow MEP Julie Girling were suspended from the Conservative Party and had the whip withdrawn on 7 October 2017, after both supported a vote in Strasbourg stating that not enough progress had been made in the first-stage Brexit negotiations to allow discussion to move onto the trade-deal phase of the talks; however, they remained in the European Conservatives and Reformistsparliamentary group. On 28 February 2018, both left the ECR group to join the European People's Party group. On 1 March 2018, Ashworth was one of three UK MEPs who voted against a motion to encourage national parliaments to ban "gay conversion therapies"; he issued a statement on 17 September 2018 that his vote was "a mistake which I deeply regret", and pointing to his other votes that day in support of LGBT causes.
Change UK
On 16 April 2019, it was announced that he and fellow MEP Julie Girling had joined Change UK. However, Girling later declared support for the Liberal Democrats and stated that she had never actually joined Change UK. Ashworth was the first candidate on the list for Change UK in South East England at the 2019 European Parliament election, at which he failed to be elected.
