This Is Why

The leader of the Alternative for Deutschland (AfD) party in Saxony-Anhalt has been called "the most dangerous man in Germany".

Ulrich Siegmund, a 35-year-old former perfume salesman, is on course to be elected as leader of the state of Saxony-Anhalt.

His victory would be the biggest win for a far-right party since the Second World War.

So who is he and what does the AfD stand for? And what would a state election win for the party mean for Germany and for Europe?

Niall is joined by Sky’s Europe’s correspondent Alistair Bunkall, who tracked down Siegmund at an AfD rally in Saxony-Anhalt.

Have you got a question for Niall? Email the show – why@sky.uk

Could artificial intelligence provide the key to finding true love?

The chief executive of Bumble certainly hopes so as she plans to introduce an AI feature to the popular dating app.

Whitney Wolfe Herd has already changed the world of dating by co-founding both Bumble and Tinder - so who is she? And why is she banking on AI being the future of matchmaking?

Niall is joined by Mashable's associate editor Anna Iovine for the last episode in our series profiling the biggest names in the tech industry you might have never heard of.

Have you got a question for Niall? Email us at: why@sky.uk. You can also watch This Is Why on YouTube.

Three years into Sudan's war, millions face hunger, displacement and violence.

It was triggered by a power struggle between the army and a paramilitary organisation known as the Rapid Support Forces (RSF).

Britain could have a key role in ending the war as its ally the UAE has been accused of backing the RSF.

Dominic Waghorn speaks to Sky's Africa correspondent Yousra Elbagir, who has recently returned from Sudan where she visited El Obeid, a city where thousands of civilians have sought shelter. It is facing siege-like conditions, and she tells us about what life is like there and what hope people have that the war will end.

Have you got a question for Niall? Email us: why@sky.uk

Bob Harris joins This Is Why to remember Dolly Parton. He interviewed her many times during her decades-long career and explains why she meant so much to people from every generation.

Have you got a question for Niall? Email us: why@sky.uk

112 care leavers aged 18 to 24 died last year, according to a government-commissioned review – that's three to four times the rate of their peers.

Nick Martin, our people and politics correspondent, has been following the journeys of people leaving the care system for many years.

Joining Niall, he shares the stories of those who have lived in care. He tells us about the challenges young people face and the changes that could help them when leaving the system.

Anyone feeling emotionally distressed or suicidal can call Samaritans for free on 116 123 or visit samaritans.org in the UK. In the US, call the Samaritans branch in your area or 1 (800) 273-TALK.

Have you got a question for Niall? Email us: why@sky.uk