 After Phillip's death, the women fight over Jill and Phillip's son, Phillip III, as well as numerous other men including Katherine's husband, Rex Sterling.A 2003 plot twist leads to Katherine and Jill believing they are mother and daughter; however, this plot is undone in 2009 by head writer Maria Arena Bell and Katherine is given another son, Tucker McCall.Cooper is regarded as an icon of the genre, with some critics believing her character and performance are chiefly responsible for the soap opera's success and longevity.