We asked two academics to check the claim, made by a former top official at the Home Office.
Liberal Democrat leader Vince Cable claims there is no evidence that immigration impacts wages. Is he right?
Labour leader Jeremy Corbyn insists the two are inextricably linked. He's wrong.
We asked two constitutional law experts to explain what would happen if Edinburgh and Cardiff refuse to give legislative consent to a bill.
Two experts assess the prime minister's claim and what the evidence says about the impact of a ban.
Heating oil creates chemicals that are said to be harmful. Here's how olive oil performs.
We asked two experts to examine what the buildling regulations say.
Politicians in Europe, the US and the UK have blamed steel industry woes on artificially cheap imports.
We asked two academics to check the claim made by UKIP leader Paul Nuttall.
We asked two experts to check a claim in the UKIP manifesto.
Theresa May says they have. But let's take a closer look.
The figures don't really add up.
Theresa May claims the Conservatives have historically been a party of low taxes. Is she right?
We asked two experts in youth politics to check the claim that has been circulating on social media.
Labour has pledged to raise the rate of corporation tax to 26% by 2020. How much could this raise?
We asked two academics to check Jeremy Hunt's figures.
The Conservatives claim the energy market is broken. Are they right?
'Per pupil expenditure' is where the real story lies.
Diesel engines have been demonised for their emissions but the technology has already cleaned up its act.
Labour leader Jeremy Corbyn claims they do. Two academics assessed the facts.