As the disaster in New Orleans intensified, critics charged that Bush was misrepresenting his administration's role in what they saw as a flawed response. Leaders attacked Bush for having appointed apparently incompetent leaders to positions of power at FEMA, notably Michael D. Brown; it was also argued that the federal response was limited as a result of the Iraq War and Bush himself did not act upon warnings of floods. Bush responded to mounting criticism by accepting full responsibility for the federal government's failures in its handling of the emergency. It has been argued that with Katrina, Bush passed a political tipping point from which he would not recover.