James Thomas Flexner titled his biography Washington: The IndispensableMan, and in it he made the argument that of all the founding fathers Washington was the one the country could not do without.
Pervez Musharraf's departure as president of Pakistan leaves the Bush administration without the man it once praised as an "indispensable" partner in the war against terrorism.
Since 2004 he has gone from an underdog one-man-party to leading the 3rd-largest party in the Dutch parliament and an indispensable partner in the governing coalition of the Netherlands today.