The Constituency Commission report is the most keenly anticipated publication for every TD in the land. Here's a few who will have a sleepless night:
Michael Ring: Already breathing fire and brimstone over a cut to Mayo.
Alan Shatter and Peter Mathews: The leafy suburbs of Dublin South are fickle enough without losing two seats before a vote is cast.
Jerry Buttimer: The Fine Gael TD is looking at his home patch moving out of Cork South-Central.
Colm Keaveney: The new Labour Party chairman is facing the loss of half his heartland in an area where his party's support is already thin on the ground.
Michael Healy-Rae: The Independent TD will have to head into North Kerry to continue his father's legacy.