According to Rochesterturning, rumors are flying that David Nachbar will drop out of the primary race in the 29th. One of the reasons I find this credible is the private equity firm Warburg Pincus announced yesterday that their acquisition of Bausch and Lomb will proceed. Since it's common practice in acquisitions to "lock up" key players, I assume that Nachbar will commit to at least a year of employment at B&L. The Warburg acquisition must still be approved by shareholders, so it's reasonable to assume that Nachbar will be locked up well into Fall, 2008, which gives him little room for primary campaigning.
Update: It's official.