After constitutional reforms in 1999, all but 92 hereditary peers were expelled from the House of Lords.
More importantly, the kingdom of Morocco has made a series of democratic constitutional reforms over the past decade.
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The demonstrators were angry at constitutional reforms which the government says will modernise Guatemala's economic and regulatory systems.
Bahrain's four main opposition groups have grown louder in demanding constitutional reforms to curb the ruling Sunni family's powers.
For his part, Mr Labastida promised to introduce constitutional reforms on indigenous rights in the next session of Congress.
Mr Correa has repeatedly argued that constitutional reforms will make Ecuador a more just society and tackle endemic political instability.
Controversy around constitutional reforms in Bolivia has been in high gear since the constituent assembly was elected in mid 2007.
As with the financial reforms proposed in Agenda 2000, the constitutional reforms would prepare the way for enlarging the Union.
King Hamad has tried to address some of the protesters' demands by announcing constitutional reforms intended to lead to greater accountability.
Thursday's protest was fuelled by anger at Mr Perez Molina, who has proposed constitutional reforms that he says will modernise Guatemala's economic and regulatory systems.
They sat in on a cabinet committee, shaping Labour's constitutional reforms.
Even before the election, Mr Veltroni said he wanted to co-operate with Mr Berlusconi on electoral and constitutional reforms to make Italy easier to govern.
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Constitutional reforms in Italy must be passed by both houses twice.
The constitutional reforms collapsed, admittedly through no fault of Mr Prodi's.
Confidence cannot be restored unless it backs the rest of the fiscal and constitutional reforms that he wants, some of them long languishing in the legislature.
In many Tory minds, Mr Blair's constitutional reforms, reducing the role of central government and diluting the sovereignty of Parliament, are all part of the same plot.
President Boris Trajkovski's plan offers rebels incentives to disarm and acceleration of constitutional reforms to improve the status of Albanians, who make up 30 percent of the population.
It was his tour de force performance at Labour's conference in 1994 which helped to swing the party behind Blair's constitutional reforms, including the revision of Clause IV.
Mrs Arroyo has pledged to reduce the country's huge public debt, speed up growth, improve the tax take and produce constitutional reforms to make the Philippines more governable.
The BBC's Wyre Davies says the new government is now tasked with speedily implementing the constitutional reforms and preparation for free and fair elections which Tunisians have been promised.
Yet unease is growing about the monarchy's direction, particularly its reluctance to enact constitutional reforms that would reduce the monarch's power in favour of elected institutions such as the parliament.
Gianfranco Fini, the post-fascists' leader, has not forgiven Mr Berlusconi, his supposed ally on the right, for sinking the constitutional reforms (along with Mr Fini's hopes for a directly elected president).
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While early efforts combined with elections and pledges for constitutional reforms helped ease the tension, sustaining such spending with minimal natural resource revenue is becoming an increasingly difficult task to keep up.
Mr Berlusconi made clear to his followers last week that he would block a package of constitutional reforms, proposed by a parliamentary commission called the bicamerale, if the judiciary dared to convict him.
Venezuela police clash with students protesting constitutional reforms.
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Under the constitutional reforms, candidates will have three ways to get on a presidential ballot: nomination by a party with at least one parliamentary seat, endorsement by 30 members of the parliament, or 30, 000 signatures.
"Right now, over there in that drawer I can take out, without exaggerating, six different proposed models, some with constitutional reforms, some without, " Penchyna, a senator from Mexico's eastern Hidalgo state and former national PRI spokesman, said in an interview this week.
Having lost that battle, Mr Kuchma then said he would only accept changes to the electoral laws, along lines set out by Mr Yushchenko, if the opposition leader in turn agreed to constitutional reforms that would water down the powers of the president.
Working with Labour had brought about radical reforms, including constitutional changes that reformers could previously only have dreamed about, she said.
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