Nigel Farage has said he will not stand in December's general election.
The Brexit Party leader won't be adding to his seven previous failed attempts to be elected into Parliament.
Instead, Mr Farage said the Brexit "cause" will be better served by him campaigning across the country on behalf of other candidates.
He told the BBC's Andrew Marr Show on Sunday: "I thought very hard about this, how do I serve the cause of Brexit best?
"Because that's what I'm doing this for, not for a career. I don't want to be in politics for the rest of my life.
"Do I find a seat, try and get myself into Parliament? Or do I serve the cause better traversing the length and breadth of the UK supporting 600 candidates?
"I have decided the latter course in the right one."
He added: "[It's] very difficult to do both. Very difficult to be in a constituency every day and at the same time be out across the UK."
Mr Farage confirmed at the party's campaign launch on Friday that it will stand candidates across the country, rather than target specific seats.
He told Mr Marr that he has "wanted for months" a Leave alliance in the election "for a proper Brexit".
But he said of the government's new Brexit agreement: "If Boris is determined to stick to this new EU treaty, then that is not Brexit.
"If Boris was going for a genuine Brexit, we wouldn't need to fight against him in this election."
It comes after Mr Farage claimed to the Sunday Times that the Tories offered him a peerage twice earlier this year.
He said: "They thought the deal was that if I accepted that, we would only fight a few seats."
