Support for this and opposition to this approach has been reported by Trump`s cabinet and advisers: Energy Secretary Rick Perry, Secretary of State Rex Tillerson, Economic Adviser Gary Cohn and Adviser and Son-in-law Jared Kushner would have wanted the United States to stick to the agreement, while White House Adviser Steve Bannon , White House counsel Don McGahn and EPO Administrator Scott Pruitt wanted the United States to abandon him.  There are also serious legal and constitutional issues. Foreign leaders in Europe, Asia and around the world should have no more to say about the U.S. economy than our own citizens and their elected representatives. That is why our withdrawal from the agreement is a reaffirmation of American sovereignty. (Applause) Our constitution is unique among all the nations of the world, and it is my supreme commitment and the greatest honor to protect them. And I will. The White House said Trump would end the implementation of former President Barack Obama`s CO2 reduction targets, and that the withdrawal would be consistent with the years of withdrawal processes under the agreement.  On September 16, 2017, an EU official said that the Trump administration had apparently weakened its position on exiting the agreement. The White House informed the press that it had not changed its position on the agreement.   Luke Kemp, of the Fenner School of Environment and Society at the Australian National University, wrote in a commentary for Nature that « withdrawal is unlikely to change U.S. emissions » because « U.S.
greenhouse gas emissions are disconnected from international legal obligations. » He added, however, that this could hamper efforts to mitigate climate change if the United States ceases to contribute to the Green Climate Fund. Kemp said the impact of a U.S. exit could be good or bad for the Paris agreement, because « an unseraunted American president can do more damage inside than outside the agreement. » Finally, « a withdrawal could also make the United States a climate pariah and provide China and the EU with a unique opportunity to take control of the climate regime and significantly strengthen their international reputation and soft power. »  On the other hand, there is the belief that China is not in a position to take control of the climate regime and that it should instead « help rebuild global leadership by replacing the Sino-Chinese G2 partnership with a climate 5 (C5) partnership comprising China, the EU, India, Brazil and South Africa. »  The Paris Agreement was drafted in 2015 to strengthen the global response to the threat of climate change. After years of negotiations, the signatories of the Paris agreement have decided to try to limit global warming to less than 2 degrees Celsius by the end of the century and aim for an even more ambitious target of 2.7 degrees Fahrenheit (1.5 degrees Celsius).