Source: https://www.nytimes.com/2015/12/29/nyregion/mayor-de-blasio-still-trying-fitfully-to-blow-his-own-horn-better.html?rref=collection%2Fsectioncollection%2Fnyregion&action=click&contentCollection=nyregion®ion=rank&module=package&version=highlights&contentPlacement=2&pgtype=sectionfront&_r=0