Bill ClintonBill ClintonLarry Summers: Mnuchin squandering his credibility with Trump tax proposal Patagonia threatens to sue Trump over national monuments order Robert Siegel leaving NPR's 'All Things Considered' MORE is spending Monday in Puerto Rico, signaling the Clinton camp is at least planning a run to the final weekend of the race despite news from bigger states scheduled earlier on the primary calendar. The former President has stops today in Barceloneta, Salinas and Ponce.

Sending Bill Clinton to do ground work for the June 1 contest is a somewhat surprising given the recent news from Pennsylvania and North Carolina.

In Pennsylvania, Clinton's double digit lead in polls has shrunk to a RealClearPolitcs average of 6.6 percent. One recent poll even showed Obama leading in the state.

In North Carolina, Obama's average lead is 16.2 percent. A poll released this weekend showing Obama up 23 points in the the state made a splash on Drudge and other sites.