He has been called before parliament to explain his abrupt dismissal earlier this year of two economics ministers.
Romney could end these discussions overnight by releasing his tax returns, as he has been called on to do by Republicans like Alabama Gov. Robert Bentley, former Mississippi Gov. Haley Barbour and Iowa Sen.
Hamilton's integrity has been called into question - and in some cases he has been called a liar - after he was found guilty of giving misleading evidence to race stewards following the Australian Grand Prix.
He has twice been called to testify before lawmakers in London about what he knew of misconduct by staff at News International.
He has already been called twice to testify before British lawmakers and resigned from a number of positions with British subsidiaries of his father's media empire.
He has been developing so-called expandable space habitats, a technology he bought from NASA a number of years ago.
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Further trying to separate himself from the liberal ideas he has been associated with, McCain detailed what he called "significant differences" between him and the Democratic candidates, Sens.
He has been proposing his so-called Buffett Rule, which would increase the capital gains tax rate by 100%, making it the fourth highest in the industrialized world, to go with his world highest corporate rates.
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The key to the 15-year-old's success has been a sweet game he called "Flash Empires" and a hefty dose of advertisements served up in part by Mochi Media, the casual gaming industry's emerging broker of advertising.
But on many others, especially his so-called signature courses, he has been deeply engaged, walking the land and visiting the sites often, and is now widely respected for crafting competition courses of the highest order.
In contrast, Andres Manual Lopez Obrador has an almost messianic belief that he's been called to uplift the masses.
Since he left Roxy Music in 1973 his technological wizardry has been called upon by a long list of artists.
The pastor takes me to a poor area of Dallas called Oak Cliff, where he has been providing free food for the children while they are on holiday over the summer and missing school meals.
He has been a critic of progress in Afghanistan, as well as the defence department budget, which he called "bloated".
The chief executive of Norfolk County Council has been called on to leave immediately after he admitted recording conversations with a former leader.
He has been proved totally correct and he has once again moulded another outstanding United side, in fact this can be called a great side.
He has been joined by New Jersey Governor Chris Christie, who called on policy-makers to examine the US mental health system and broaden access to drug treatment.
He also has been writing puts against a hot biotech start up called Exact Science ( EXAS), hoping to buy into the stock at a cheap price, but collecting income while he waits for the stock to drop.
Of course, now we - of course that's been called into question - and, because he has a deteriorating hip.
Lately, he's been a so-called guru at eToro but has experienced the roller-coaster ride of the FX markets.
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He has already said a moratorium on EU meat imports, which has been called for, was not allowed under EU rules.
Code to exploit the bug has been released by Mr Aboukhadijeh and he set up a website, called Filldisk that, on vulnerable PCs, dumps lots of images of cats on to the hard drive.
In more recent times, he has been involved in conflict resolution with a group of prominent retired African statesmen called The Elders.
He has been declared "persona non grata" for what the Russian foreign ministry called "provocative actions in the spirit of the Cold War".
He said there had been a campaign to blame Liverpool fans for the tragedy and has called on the prime minister to issue a formal apology.
He's been called for four fouls in four of the past six games and has 43 on the season.
As most people know Gary has been having his day in the sun for the past few years because he called the 2007-2008 financial crisis and Bear market.
Nine-cap Delve has been out of favour with national coach Warren Gatland, but on Monday he was called into Wales' RBS Six Nations squad for Saturday's Test with Ireland at Croke Park.
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