The phrase "argued existing" is not correct and does not convey a clear meaning in written English.
It seems to be an incomplete or incorrect combination of words that lacks context to be usable.
Example: "The researchers argued existing theories were insufficient to explain the new findings."
Alternatives: "contended that current" or "asserted that established".
Instead, she argued, existing parties should coordinate better to achieve change.
And as Secretary of Energy Steven Chu has frequently argued, existing renewable-energy technologies cannot provide the large amounts of cost-competitive energy required to significantly reduce the country's reliance on greenhouse-gas-emitting fossil fuels.
Mr Dickens campaigned for PIE to be banned but met resistance from ministers who argued existing laws were enough to jail paedophiles.
He argues existing data suggests a more realistic estimate would be 91 accidents during that half century.
We readily concede that IT is at the heart of Service Systems but we argue existing frameworks need to be expanded to address service systems governance and insertion of technology breakthroughs.
However, privacy groups including the Electronic Frontier Foundation have questioned the proposed legal immunity, arguing existing rules allow companies to coordinate sufficiently already and challenging a potential provision that could allow the Homeland Security Department to share data in "near real time" with the NSA, FBI and secret service.
But some scientists argue existing laws are sufficient to regulate their use, should they become a reality.
But Mr Webster, a solicitor specialising in planning law, argues existing legislation on graffiti "is aimed entirely at prevention and removal".
While some argue existing laws are sufficient to regulate their use, campaigners say advances in robotic technology mean it is only a matter of time before we face machines which make their own decisions.
In conclusion, we argue, existing manufacturers in China will neither reduce production capacity built in the course of the last decade, nor production outputs; but they will rather adapt to prolonged low prices, by increasing the efficiency of the production process.
In a speech earlier this year, the education secretary, Michael Gove, argued that existing sanctions are toothless.
