After decades of violence and political conflict, the Good Friday Agreement - signed on 10 April 1998 - promised an end to the Troubles and a hopeful new era for Ireland. But, 25 years later, has the effect of the Brexit vote put that settlement at risk? Mark Durkan, Lord Empey and Monica McWilliams played a critical role in the peace agreement, and will join Jonathan Freedland to reflect on its legacy and answer your questions in this landmark livestreamed event.

Monday 24 April, 8pm–9.15pm

In February, Nicola Sturgeon resigned as Scotland’s longest-serving first minister, triggering the SNP’s first leadership contest in almost 20 years. Her successor must consider the setbacks faced by Sturgeon, from the push for a second independence referendum to the blocking of the gender recognition bill. The day after a new leader is announced, join Guardian journalists as they share their reactions and discuss the challenges ahead for the party and the Scottish independence movement.

Tuesday 28 March, 8pm–9pm