She says an early election would provide "certainty and stability" in the negotiations, which will now start after the vote. It became all the more relevant as the nature of the Brexit planned by the government emerged, revealing that Britain would in all likelihood extract itself from the European single market in order to take control of its borders.
Defending the measure, Mrs May told MPs there was a "window of opportunity" to hold a poll before Brexit negotiations began in earnest in June and that the country needed "strong leadership" to make a success of the process.
According to The Telegraph, Senior Liberal Democrats have "confirmed" Mr. Blair "could" join forces with Lib Dem leader Tim Farron to campaign against Brexit at the 2017 general election.
The spokesman noted that this did not mean there will be a delay in Brexit talks, "because negotiations were meant to start in June regardless of the United Kingdom government's decision to call an election on the 8th". So vote for a strong and stable leadership in this country; vote for the strong and stable leadership this country needs.
Leaders of European Union states are due to adopt negotiating guidelines at an April 29 summit, and the bloc will prepare detailed plans for the talks with Britain by late May.
In a taster of the campaign ahead, May traded barbs in the Commons with opposition Labour leader Jeremy Corbyn - most likely for one of the last times before the election, after the prime minister ruled out attending any television debates.
Britain will go to the polls on June 8, after MPs cleared the way for an early general election.
Explaining her stance, Mrs May said: "I believe in campaigns where politicians actually get out and about and meet with voters".
The Conservatives will have their eyes firmly on a string of Labour seats in the capital including Ealing Central and Acton where Rupa Huq has a majority of 274, Brentford and Isleworth, won in 2015 by Ruth Cadbury by just 465 votes, and Hampstead and Kilburn where Tulip Siddiq's majority is 1,138.
May also said that she was very proud of her government's achievements with regard to increased spending on healthcare and a decrease in unemployment.
"Fortuitously for them, they find themselves in a position of being the only party that is making the anti-Brexit case", said Rob Ford, political science professor at the University of Manchester. But for Labour to have opposed her call for a June election would have shown contempt for the many working-class leave voters and abandoned them to three more years of austerity and its attendant inequalities - which lay at the root of their disillusionment with established politics and support for Brexit.
May, previously the interior minister, took over as prime minister for David Cameron, who resigned a year ago after voters said Yes to Brexit.
Labour is "prepared to make radical change" and stand up to the elites, but this did not mean "picking off people of particular incomes", she said. A fall in support for the Scottish National Party (SNP) would undermine its call for a second referendum on independence. But this is a prime minister who promised there wouldn't be one.
Opposition Labour party leader Jeremy Corbyn speaks during Prime Minister's questions.
Mrs May has said she will not take part in any TV leaders' debates, leading to criticism from Mr Corbyn and other party leaders that she is "running scared".