EPP's collaboration with AfD raises concerns over EU migration policy.
Key meetings and chat groups facilitated this cooperation.
Investigations are ongoing to assess the implications.
Strategic angle: Investigations suggest the EPP group in the European Parliament cooperated more closely with right-wing parties, including the AfD, on tougher EU migration laws.
EPP's collaboration with AfD raises concerns over EU migration policy.
Key meetings and chat groups facilitated this cooperation.
Investigations are ongoing to assess the implications.