Good morning and Merry Christmas. Today is Tuesday, December 25, 2018. I’m Imran Sheikh, and here are your local headlines from TribLIVE Pittsburgh. Today will be mostly cloudy with a high near 35 degrees. Tonight, it is expected to be partly cloudy with a low around 28. Our top story is: Pittsburgh’s chief urban affairs officer said she is “taking a break” after 30 years in public service, but don’t call Valerie McDonald Roberts retired.