The CBI has given a big blow to the Aam Aadmi Party by arresting Delhi Deputy Chief Minister Manish Sisodia in the second round of questioning in the Delhi Liquor Policy case on Sunday. Mr. Sisodia will be produced in the court on Monday afternoon. He is the second AAP minister after Health Minister Satyendar Jain to be arrested, which begs the question – are central agencies tightening their noose around the Aam Aadmi Party?