Original sentence: A 75% smoking ban imposed by Atlantic City's City Council went into effect on April 15, 2007, limiting smoking to no more than 25% of the casino floor.Casino operators, especially Donald Trump have claimed that the ban places Atlantic City casinos at a competitive disadvantage with casinos in neighboring states and is leading to a revenue decline
Edited sentence: A 75% smoking ban imposed  by the Atlantic City, City Council went into effect April 15 2007.Atlantic City is facing it's most severe crisis since casino gambling began in 1978.this coupled with increased competition from nearby states such as New York and  Pennsylvania, New York, caused Atlantic City casinos to be on track for their first-ever year of revenue decline