Legislation in the 15 Commonwealth countries where the Queen is head of state would also need amending.
There is but one precedent for a strong prime minister and a weak head of state.
The first African female head of state who may just get elected for a second term.
FORBES: The World's 100 Most Powerful Women Know A Thing Or Two About Economics
That deal included recognizing Sanogo as former head of state, with a salary and mansion.
It is only the second time a Portuguese head of state has made such a move.
It not uncommon for a head of state to skip a military handover ceremony.
CNN: U.S. Marine general takes over NATO forces in Afghanistan
While the Queen is head of state, her involvement in day-to-day political decisions is largely formal.
Under the Dutch Constitution the king or queen is head of state but politically neutral.
Unlike other countries, the United States has yet to have a female head of state.
On most counts Mr Estrada is not the most impressive head of state in the region.
Grizzly-bearded, baggy-suited and humble in manner, Muhammad Morsi, Egypt's new head of state, fits the bill.
It is about the manner in which he has conducted himself as America's head of state.
The charter designates the National Assembly interim head of state if a president-elect cannot be sworn in.
He booted Luis Giusti, head of state-owned Petrleos de Venezuela -- and killed the ambitious oil expansion.
Relations between the regional powers have improved since Egyptians elected an Islamist head of state in June.
Mr Mbeki, who has served two terms, has to step down as head of state in 2009.
Honduras is a representative democracy, where the President is both head of state and head of government.
Ireland's head of state President Michael D Higgins and Stormont First Minister Peter Robinson will also be there.
The first head of state to visit the United States was the leader of Brazil, Dom Pedro II.
The head of state is expected to meet Mr Bersani on Thursday - the second day of talks.
As well as being the head of state, the British monarch is governor of the Church of England.
In the 2003 film "Head of State, " Chris Rock's president, Mays Gilliam, is an even more exaggerated caricature.
No former head of state has ever before faced charges, or an extradition request, in a national court.
Not long ago, a Head of State called on the United Nations to establish an International Year on Youth.
Taylor is the first African head of state to go on trial for war crimes before an international tribunal.
CNN: Charles Taylor refutes 'malicious' accusations at war crimes trial
What was left unsaid was what, if any, role the British head of state would have in that future.
All the trappings, in other words, of a state visit save the absence of the Head of State herself.
BBC: David Cameron, Barack Obama and the Special Relationship
Ms Fernandez is the first head of state the new Pope has met.
BBC: Argentina's Fernandez raises Falklands with Pope Francis
Even the head of state, King Norodom Sihanouk, seems to have been intimidated.
应用推荐