I think that must be wrong ska - wiki has 42.7%, which like
killer b was the figure I saw mentioned
EDIT: I think 57.9% is the turnout for the 2019 GE, looks like someone made a c&p error
Hartlepool byelection results in full - Tories win with 16-point swing
Here are the Hartlepool results in full, from PA Media.
Jill Mortimer (C) 15,529 (51.88%, +22.96%)
Paul Williams (Lab) 8,589 (28.69%, -8.99%)
............)
C maj 6,940 (23.19%)
15.97% swing Lab to C
Electorate 70,768; Turnout 29,933 (42.30%, -15.62%)
And here are the 2019 general election results.
2019: Lab maj 3,595 (8.76%) - Turnout 41,037 (57.92%)
Hill (Lab) 15,464 (37.68%); Houghton (C) 11,869 (28.92%); Tice
(Brexit) 10,603 (25.84%); Hagon (LD) 1,696 (4.13%); Bousfield (Ind)
911 (2.22%); Cranney (Soc Lab) 494 (1.20%)