With Pennsylvania now down to 18 congressional districts after the 2010 Census, the 19th District that includes York County won't exist next year.
What will replace it is likely to be the 12th Congressional District, now occupied by Democrat Mark Critz, an aide to the district's longtime Congressman John Murtha.
Critz has the least seniority of any Pennsylvania Democrat in Congress and with Republicans running the process of drawing new districts, observers see him as the congressman losing his district.
The Cook Political Report published its estimate of the new congressional district boundaries and it shows a new 12th District occupying much of the territory of the current 19th District, including all of York County.
The map shows less of Cumberland County in the district, a little slice around Greencastle in Franklin County joining the new district and most startling of all, the addition of the City of Harrisburg.
It looks like the GOP congressional district plan will dilute heavily Democrat Harrisburg by throwing it in with hugely Republican suburban and rural areas in southcentral Pennsylvania including York County.
