<prompt> Translate the following text to EnglishKatika 1998, Isikoff alishirikiana na Toobin katika mpango wa kuchapisha kitabu cha Clinton.  <response>: In May of 1998, according to Isikoff, when both he and Toobin had publishing deals, Toobin actually proposed over lunch that he and Isikoff join forces and co-author their Clinton books. 