Robert Biedron is one of Poland's young, rising political stars. He's an atheist in perhaps Europe's most Catholic country and its only openly gay politician. And now he is being viewed as a frontrunner for Poland's presidency.

"I'm a dreamer. I was born in a very traditional, conservative part of Poland. I am gay and being an atheist, it wasn't easy for me," says Mr Biedron, mayor of Slupsk, a city about 18km (11 miles) from the country's Baltic Sea coast.

He is being talked about as one of the leaders of a new progressive political movement that is being organised.

A former Polish President, Aleksander Kwasniewski, has urged him to run for president in 2020. Opinion polls put him third behind the popular incumbent, Andrzej Duda, and the ex-prime minister and current European Council President, Donald Tusk. Read more via BBC