The Lib Dems' penny on income tax would fund a £6.3 billion boost in spending on NHS and social care.
Former Lib Dem resource minster Dan Rogerson is attempting to regain the North Cornwall constituency after losing his seat to the Conservatives in the 2015 General Election.
Launching the manifesto in London today, party leader Tim Farron pledged to hold a referendum on the final Brexit deal following two years of negotiations between London and Brussels, giving voters the chance to reject the agreement and stay in the European Union.
House oversight panel calls for May 24 hearing with Comey
The source says Comey wanted to keep the memos in a safe place in case they came in handy down the road. The memo, read by an anonymous source, was about Comey's meetings with President Trump.
Ms Swinson, who was the Liberal Democrat business minister in the coalition government before losing her seat two years ago, said hers was the only party campaigning to stay in both the United Kingdom and European Union single markets.
Institute for Fiscal Studies director Paul Johnson, who on Tuesday suggested Labour was too ambitious in seeking to raise an extra £48bn in tax, told BBC Radio 4's The World at One programme the Lib Dems' numbers add up - although the party itself admitted it is £14bn short and will have to borrow to make up that deficit.
Alun Griffiths, a councillor and the party's Parliamentary candidate for Bradford West, also described the Liberal Democrats' pledge to legalise cannabis as "a sensible, straightforward thing to do".
Mrs May's decision to pull Britain out of the single market was not on the ballot paper past year and any final Brexit deal should be subject to a second referendum, he said.
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Authorities say Richard Rojas was taken into custody Thursday after mowing down 23 people, including a teenager who died. He told reporters at the scene that Rojas is a US citizen and a former member of the armed forces with the US Navy.
The wide-ranging document offers a number of promises to end discrimination, stating: "The rise in hate crime, the abuse of refugees, and the toxic rhetoric on immigration and about immigrants themselves is not the future Liberal Democrats want for Britain". Waiting time standards for mental health would match physical health and there would be an integration of the NHS and social care systems.
The Liberal Democrat Party has called for a review of pension tax relief.
"From increasing taxes to borrowing more - from putting our security at risk to scrapping Trident - these policies are an echo of Corbyn's manifesto earlier this week".
The upcoming United Kingdom elections are unlikely to deliver enough certainty about what life will look like post-Brexit, said the former MEP and ALDE leader in an interview with EURACTIV.com, adding that no winners will emerge from the process.
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A death with dignity bill is advancing through the Maine Legislature, but will face a likely veto from the Republican governor. His original proposal called for adding $3 to every residential utility bill in the state and $10 to each commercial bill.
In many ways its the revival manifesto with tax cuts, spending increases, legalisation of cannabis and few other voter-friendly polices.