DUP leader Jeffrey Donaldson and Sinn Fein Vice President Michelle O’Neill.

After almost two years of stalemate and political wrangling, Northern Ireland’s power-sharing governance system is back up and running. But the latest boycott that paralyzed the government was just the latest in a long line of disputes that has seen Northern Ireland’s dysfunctional legislative body shuttered for long periods.

Last week, the U.K. reached a new agreement with the European Union aimed at resolving their long-running dispute over trade rules for Northern Ireland under the Brexit divorce deal. But it remains to be seen whether it will be enough to satisfy unionists in Northern Ireland as well as hard-line Brexiteers in London.

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