Here are some things we have learned about the European Union referendum today...
1. The Organisation for Economic Co-operation and Development has ramped up its warnings with just three weeks to go until the referendum, believing a Brexit would spark turmoil in world stock markets.
OECD is right to warn leaving Europe would have "negative consequences" for our economy. That means lost jobs and higher prices. #StrongerIn
-- David Cameron (@David_Cameron) June 1, 2016
It said the UK economy has already been undermined by fears voters will chose to leave the EU, cutting its forecast for UK growth this year by 0.5%. Breaking away from the EU debate, shadow chancellor John McDonnell took the opportunity to take a swipe at George Osborne, arguing the OECD's move to downgrade UK growth in 2016 "shows the absolute failure of the Chancellor's economic policy".
2. Boris Johnson and Michael Gove's latest plan to control immigration by adopting a points-based system has got the Dutch prime minister hot under the collar.
The latest statesman to wade in on the Brexit debate, Mark Rutte said his country would strike back by implementing a similar approach making it harder for Britons to live and work in the continent. He added that he believed other European member states would react in the same way. Meanwhile George Osborne labelled the idea "fantasy politics".
3. Comedian Eddie Izzard announced his intention to stand as an MP while on the road advocating for the Remain campaign.
-- Eddie Izzard (@eddieizzard) June 1, 2016
He is one week into his tour of 31 cities in 31 days, encouraging young people to register and vote to stay in the European Union.
4. Boris Johnson was greeted with a smattering of boos during his latest attempt to woo voters on his battle bus tour.
Brushing off those who weren't quite as welcoming to him, Michael Gove and Priti Patel as he would have hoped, he argued that at least it proves the Leave campaign "do not have manicured, tame, controlled public meetings".
5. Donald Trump has announced his first visit to the UK since launching his US presidential bid will be the day Britain discovers if it is to leave the European Union.
The presumptive Republican nominee, who has already shared frosty comments with David Cameron via the media, will reopen his Trump Turnberry golf course in South Ayrshire. Downing Street said no plans had been made to use the occasion for a first meeting between the billionaire tycoon and David Cameron. But senior Tory Sarah Wollaston was quick to make her opinion clear.