The third change is the tightening of prime ministerial control over the Cabinet Office.
Labour leader Ed Miliband says he is "relishing" the idea of televised prime ministerial debates.
But these are very targeted precision operations that in some cases require prime ministerial approval.
Israel's first Arab prime ministerial candidate has few illusions about what he is doing.
The BJP had rejected Mr. Kumar's demand, but it has yet to name its prime ministerial candidate.
One veteran civil servant I spoke to lamented that Britain's prime ministerial staff used to be tougher.
But Blair would do well to keep the first half of his prime ministerial career as short as possible.
When the two met the conversation was, I'm told, heated, involved some prime ministerial finger pointing but not, apparently, shouting.
But more poor results could weaken his claim to be prime ministerial material in 2014, when general elections are due.
Some say he may leave his prime ministerial post but stay on to chair his ruling Ethiopian People's Revolutionary Democratic Front.
But now that Mr Putin himself is in the prime ministerial seat it may be harder for him to find scapegoats.
As a former research chemist as well as a free-marketeer, her views carried even more weight than the usual Prime Ministerial utterances.
Correspondents say the remarks are significant given the rising clamour among Congress party leaders to project him as the prime ministerial candidate.
Surprise, surprise, it suggests that a majority of Labour voters do not find Mr Miliband prime ministerial, charismatic or a natural leader.
"This is not a prime ministerial flash in the pan, " he said.
Prime ministerial engagements and parliamentary announcements were rescheduled, apparently in advance of an election campaign that many observers thought would begin this week.
Yet Britain looks increasingly likely to hold its first televised debates among prime ministerial candidates during the general-election campaign due to start shortly.
Mr Robinson, a rich Blair backer, lent the prime ministerial favourite, Mr Mandelson, a large sum to buy a large and expensive London house.
The Tamil Maanila Congress, a constituent of the United Front, had walked out after its leader lost the prime ministerial race to Mr Gujral.
Tellingly and sheepishly, Julia Gillard said she would not move into The Lodge, the prime ministerial residence, until Australian voters had essentially handed her the keys.
The UNP is particularly opposed to provisions that would allow the present executive presidential system of government to continue parallel to the prime ministerial one for six years.
Its prime ministerial aspirant, Atal Behari Vajpayee, never misses a chance to state that his party will guarantee the physical security of minorities in general and Muslims in particular.
This is where national governments meet at ministerial and prime ministerial (or presidential) level, and where most of the key decisions about the future structure of the union will be taken.
"Hold your horses" was the deputy prime ministerial advice.
BBC: Nick Clegg interview: deputy PM rails against pessimism
In Gujarat, the emergence of BJP leader Narendra Modi - who recently won a fourth successive term as chief minister of the state - as a potential prime ministerial candidate appears imminent.
He has both a sharp brain (he once led Tony Blair's policy team) and, in the vague and ineffable way that often counts for a lot, a prime ministerial air that his rivals lack.
ECONOMIST: Britain is in store for another perilously close election
Indeed, he believes he and every other country's Europe minister should be formally linked to the head of government, spending half his or her time in Brussels and acting as a sort of prime ministerial filter.
The skills Mr Maliki displayed in outmanoeuvring Mr Allawi in the 2010 struggle for the prime ministerial job have certainly stood him in good stead in turning to his advantage the fragmentation afflicting both the Sunni and Shia political camps.
BBC: Local polls pose challenge for Iraq after US withdrawal
Finally, there is some anxiety that if the terrorist threat absorbs too much of the prime ministerial attention span, the domestic agenda, especially the hard grind of forcing change through the health service and the school system, will be neglected.
In the hall, there was an overwhelming sense of relief among the Labour members that they had a leader who could rise to the occasion, and appear, well, a little more prime ministerial than he has done in the past.
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