If a nation can't understand the basis on which others are deciding its future, the time has come to opt out.
But there are no signs that Jeremy Corbyn and Tim Farron will return the favour.
Conservatives are teaming up with the Australian election guru again, after his 2015 success over Ed Miliband.
The SNP leader said Theresa May's decision was a 'huge political miscalculation'.
'Unique circumstances demand a unique response,' said the former PM.
Former cabinet minister Johnson, once tipped as Labour leader, has been a vocal critic of Jeremy Corbyn.
Liberal Democrat leader Tim Farron says May will 'bottle it' if she turns the opportunity down.
Lower iron ore prices and surprise snap election call by PM Theresa May hammer London market.
Rosa Prince, author of Theresa May: the Enigmatic Prime Minister, spoke to IBTimes UK about the snap election.
The blame for this tragedy isn't just with government – it's with those who voted for an incompetent leader.
There was a mixed reaction on the news of a snap vote in June.
Sources close to Leave.EU co-founder divulged information to IBTimes UK.
It will be the second general election in two years.
The UK is set for an early general election on 8 June.
Lib Dem Leader Tim Farron says: "Only the Liberal Democrats can prevent a Conservative majority."
Theresa May has announced an election will be held on 8 June.
May intends to use the Fixed-Term Parliaments Act 2011 to secure an early UK general election in 2017.
Sterling hits highest level since January against dollar after PM calls for 8 June election.
All of the major polling firms put Theresa May's Conservatives squarely ahead of Jeremy Corbyn's Labour Party.
Country will go to the polls on 8 June.
Prime Minister previously said on several occasions she would not seek early election.
PM confirms snap election outside Downing Street