Nigel Hastilow's latest political gaffe is not the first time the outspoken Tory has got himself into trouble with his party.
Five years ago he caused a storm after describing the Conservatives as a "lost cause" in an astonishingly frank column on his website in the lead-up to the 2001 General Election.
Mr Hastilow, who was then prospective parliamentary candidate for Edgbaston - a seat which he failed to win - wrote: "the Conservative Party is a lost cause. Its leader is not popular, its policies have all been aped by New Labour, and its personalities are still mired in sleaze."
He went on to criticise then Conservative leader William Hague, claiming: "Every time William Hague manages to land a few good punches on the Prime Minister, something else goes horribly wrong for the Tory leader and he's back where he started - struggling to re-ignite a party which seems to have lost the fire needed to do battle and lost the will to win."
The comments provided a field day for Labour MPs who subjected Mr Hastilow - and his party - to intense ridicule.
A group of Birmingham Labour MPs used an Early Day Motion to congratulate him on having the courage "to give his honest opinions about his party to those whose support he seeks".
Extracts of his remarks were repeatedly read by former Prime Minister Tony Blair in Parliament during Prime Minister's Questions to howls of laughter from Labour MPs.
Mr Hastilow was forced to make an embarrassing U-turn and retract his comments, claiming they had been written a year ago when explaining why he had become a Tory candidate.
In a letter to The Birmingham Post, he admitted he had been "naive", but criticised the way the media had reported his remarks "without actually bothering to read what I wrote".
When confronted with Mr Hastilow's comments, Mr Hague - who went on to lose the General Election - said: "Everybody is allowed one little mistake sometime."
Those words should have been taken as a warning to Mr Hastilow and will no doubt come back to haunt him now. The only conclusion to be drawn from his resignation yesterday is that the Conservative Party hierarchy decided he had run out of chances.
A former editor of The Birmingham Post, Mr Hastilow has never shied away from speaking his mind. Distinctly to the right of the Tory's current centre thinking, he used his first speech at a Conservative conference to attack politically correct policing.
He claimed detectives in the West Midlands were "spying on other detectives to root out sexism, racism and homophobia" when they should be out catching criminals.
The 41-year-old was born in Birmingham and brought up near Bromsgrove.
He was educated in Birmingham and at Mill Hill School in London before going on to study English at Birmingham University.
He started his career in journalism on the Solihull News before working for The Birmingham Post's sister paper, the Birmingham Mail. He went on to become the Post's Political Correspondent based in Westminster before returning to Birmingham, first as deputy editor of the paper, then editor.
In 1999 he left to pursue a career in politics and also became regional director of the Institute of Directors before taking on a similar role at the Institute of Chartered Accountants.
After failing to win the Edgbaston seat, he was elected for a two-year term as member of Stratford-upon-Avon council.
But he always kept his hand in journalism, writing a regular weekly column for the Wolverhampton Express & Star which was to eventually contribute to his downfall. His campaign for the Halesowen and Rowley Regis seat was to focus on improvements in public transport and reduced road congestion.
On the Conservative Party website Mr Hastilow lists his interests as "spending time with family and friends, reading, writing, most sports ... and walking their dog, Ron."
* Nigel Hastilow's declaration that Enoch Powell was "right" exposes the "racist underbelly" in the party, a Cabinet Minister said yesterday.
Work and Pensions Secretary Peter Hain said Nigel Hastilow's remarks in a newspaper column showed the "backward, reactionary" tendencies of the Tory grassroots.
In a column for the Express and Star newspaper in Wolverhampton - where Mr Powell was MP at the time of the 1968 speech - Mr Hastilow wrote: "When you ask most people in the Black Country what the single biggest problem facing the country is, most say immigration.
"Many insist: 'Enoch Powell was right'. Enoch, once MP for Wolverhampton South-West, was sacked from the Conservative front bench and marginalised politically for his 1968 'rivers of blood' speech, warning that uncontrolled immigration would change our country irrevocably. He was right. It has changed dramatically."
He also wrote: "They have more or less given up complaining about the way we roll out the red carpet for foreigners while leaving the locals to fend for themselves."
Mr Hain told BBC1's Andrew Marr show: "This Conservative candidate really exposes the racist underbelly of the Tory party."
He said David Cameron and the rest of the party's leadership had committed themselves to tackling racism, but added: "In the undergrowth of the party, in the grassroots, including this candidate, there are all these backward, reactionary sentiments."
Mr Hain called on the Tories to "get rid" of Mr Hastilow to show that "racism, along with Enoch Powell is banished to the past".
Shadow home secretary David Davis told ITV1's Sunday Edition Mr Hastilow's comments were "very unwise".