The new Labour MP for Corby and East Northamptonshire will take his seat in the House of Commons later today.
Andy Sawford won Thursday's by-election, which was triggered by the departure of Conservative Louise Mensch who decided to emigrate to American to spend more time with her family.
He's told ITV News he'll work "incredibly hard" to repay the trust of the people who voted for him.
The Labour party has won the Corby by-election beating the Conservatives who took the seat from them at the 2010 General Election.
The new Labour MP is Andy Sawford who won with a majority of 7,791 is the son of the former Kettering MP Phil Sawford.
He overturned a Conservative majority of 1,951.
For more on this story read at ITV Anglia.
The results of the Corby and East Northamptonshire by-election will be announced today.
The election follows the resignation of Conservative MP Louise Mensch, after her decision to move to New York, with her husband and family.
Voters in the constituency of Corby are heading to the polls today to elect a new MP.
The by-election follows the resignation of former Tory MP Louise Mensch who stood down in August citing family reasons. She has moved to New York to be with her husband.
To find out why Corby is so important go to ITV Anglia.
In Corby, voters will be going to the polls to elect their new MP today. The by-election is taking place after the resignation of Conservative MP Louise Mensch.
In a letter to the Prime Minister she expressed her deep regret at having to resign but explained that her priority is to be there for her family, who have decided to move to New York.
She married Peter Mensch a year ago, who is the manager of rock band Metallica. She has three children.
The Prime Minister David Cameron will be visiting Northamptonshire today, in the run up to the by-election for the Corby and East Northamptonshire seat.
It follows Tory MP Louise Mensch's resignation over the summer. The seat is a target for Labour.
Christine Emmett has been selected by the Conservative Party to contest the forthcoming Corby by-election.
The town's MP Louise Mensch is standing down and moving to America where her husband lives. She won the seat from Labour in 2010 with a majority of just under 2000.
Mrs Emmett lives at Morcott in Rutland where her husband runs a holiday homes business.
The former buyer for Marks and Spencer has also been a non-executive director of the Peterborough NHS Trust.
Outgoing Conservative MP Louise Mensch has ended her parliamentary career with a bizarre tradition.
As MPs cannot resign, Mrs Mensch had to accept a "paid office of the crown" - a new position which then disqualified her from membership of the Commons.
She has now been appointed as Steward and Bailiff of the Manor of Northstead, a position with no actual responsibilities.
The position's previous occupier was Labour's Sir Peter Soulsby, now Mayor of Leicester.
So a by-election looming for Corby - and both parties are gunning for the role. Emma Hutchinson reports.