Dame Andrea Jenkyns, Reform UK Candidate for Mayor of Greater Lincolnshire speaks on stage Former Tory minister Dame Andrea Jenkyns is widely expected to secure the Greater Lincolnshire mayoral contest, according to pollsters.YouGov experts believe she prominent Brexiter has a 15-point lead over her rivals in the contest, shooting ahead with 40% of the vote share.That puts the ex-Conservative MP comfortably ahead of the Conservatives’ Rob Waltham, who is on 25%, and Labour’s Jason Stockwood, who is on 15%.