Taoiseach Leo Varadkar's recent comments about the nature of a post-Brexit border with Northern Ireland has created something of a stir in a usually quiet political month, drawing criticism from both Fianna Fáil and the Democratic Unionist Party.

On today's episode of Inside Politics, podcast regulars Hugh Linehan and Fiach Kelly talk to DUP MP Jeffrey Donaldson, and Irish Times columnist Fintan O'Toole about the strength of Dublin's hand in Europe's Brexit negotiations.

The also discuss how domestic politics and the Brexit process are beginning to affect one another in potentially definitive ways.