The election follows the resignation of Conservative MP Owen Paterson, who was found to have breached parliamentary rules on lobbying.
Dr Neil Shastri-Hurst was selected as the Conservative candidate on Saturday and Kirsty Walmsley has been chosen to represent the Reform UK party.
Dr Shastri-Hurst would appear to be the favourite in the December 16 by-election with Mr Paterson having secured a 23,000 majority at the last General Election, while the seat has been Conservative for more than 100 years.
The by-election is set to take place on 16 December, with the Liberal Democrats and the Green party expected to announce their candidates shortly.
Presumably, Conservatives will hold.

IMAGE SOURCE,LIBERAL DEMOCRATS
IMAGE SOURCE,CONSERVATIVES
IMAGE SOURCE,REFORM UK
IMAGE SOURCE,LABOUR