President Barack Obama and Governor Tom Corbett have both ordered flags flown at half-staff in honor of Senator Arlen Specter.

The federal order will take place Tuesday; it began Monday in Pa. and will conclude Tuesday.

Said Obama in a proclamation:

As a mark of respect for the memory of Arlen Specter, I hereby order, by the authority vested in me by the Constitution and laws of the United States of America, that on the day of his interment, the flag of the United States shall be flown at half-staff at the White House and upon all public buildings and grounds, at all military posts and naval stations, and on all naval vessels of the Federal Government in the District of Columbia and throughout the United States and its Territories and possessions until sunset on such day. I also direct that the flag shall be flown at half-staff for the same period at all United States embassies, legations, consular offices, and other facilities abroad, including all military facilities and naval vessels and stations.

Specter passed away Sunday after a long battle with cancer.