KEY POINTS
  • The DUP said in a statement that it's unhappy with proposed customs and consent arrangements.
  • If EU leaders can agree a Brexit deal, U.K. leader Boris Johnson will then take it to the U.K. Parliament on Saturday.
  • There is no guarantee that a majority of lawmakers will back the deal, however.

Efforts are continuing to hammer out a Brexit deal Thursday as European Union leaders gather for a summit at which they could approve a tentative withdrawal agreement.

But that could prove very difficult with the Democratic Unionist Party (DUP), a group of politicians in Northern Ireland which are allied with the ruling U.K. Conservative Party, announcing that it couldn't support the deal as it stands.