"We're not happy," says the president about his son's ex-fiancée following reports of improper behaviour. Guilfoyle is reportedly under investigation by the State Department for alleged misconduct in her role as ambassador to Greece. Key points and original sources are listed below.

• "We're not happy," says the president about his son's ex-fiancée following reports of improper behaviour.S1

• Guilfoyle is reportedly under investigation by the State Department for alleged misconduct in her role as ambassador to Greece.S2