Bob Kerrey announced Thursday that he will leave the presidency of the New School in June 2011, when his contract expires. He said in a statement  that his intent has long been to leave at that time, but he also acknowledged the controversies at the New School, whose student and faculty groups have become increasingly critical of his management. "To understate the case this has been a challenging semester for the university and my family," he said. "There have been moments when I reached the limit of my willingness to continue serving as your president. There have been moments when my tendency to fight and to directly engage in confrontation, argument and disputes have been counterproductive." A Web site maintained by students who have clashed with Kerrey  offered its own analysis of Kerrey's plans and record, ending its commentary by saying "onward in struggle."