Poland-Belarus migrant tensions play into EU election campaign

In Poland, officials say the number of attempted illegal border crossings from Belarus has shot up. The ruling Civic Platform – which is in a tight election race with the former governing party, Law and Justice – says Belarus and Russia are using migrants as a tool of hybrid war against Poland, something Minsk and Moscow deny. We look at how the issue is playing out in the election campaign, and at the election opinion polls in Poland.