In April 2017, a group of 20 MPs from the Right-wing Alternative for Germany, the UK Independence Party and other parties sent a letter to Trump asking him to withdraw from the Paris agreement.  On May 25, 2017, 22 Republican senators, including Senate Majority Leader Mitch McConnell, sent a two-page letter to Trump asking him to withdraw the United States from the Paris Agreement.  This letter was written by Senator John Barrasso, Chairman of the Senate Environment and Public Works Committee, and Senator Jim Inhofe, known for his many years of climate change denial.  Most of the signatories to the letter were elected by states that depended on the burning of fossil fuels (coal, oil and gas);  The group of 22 senators had received more than $10 million in election contributions from fossil fuel companies over the past three election cycles.  Earlier this week, a group of 40 Democratic senators sent a letter to Trump asking him to keep America in the Paris agreement, writing that “a withdrawal from America would damage credibility and influence on the world stage.”  Support for this approach and opposition were 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, Don McGahn , and EPA Administrator Scott Pruitt wanted the United States to abandon him.  The agreement recognizes the role of non-partisan stakeholders in the fight against climate change, including cities, other sub-national authorities, civil society, the private sector and others. If the withdrawal is effective, the United States will be the only UNFCCC member states that have not signed the Paris Agreement. At the time of the initial announcement of the withdrawal, Syria and Nicaragua were also not present; However, both Syria and Nicaragua have ratified the agreement, so the United States is the only UNFCCC member state that intends not to be a contracting party to the agreement.  The negotiators of the agreement stated that the INDCs presented at the time of the Paris conference were insufficient and found that “the estimates of aggregate greenhouse gas emissions in 2025 and 2030, resulting from planned contributions at the national level, do not fall into scenarios at 2oC at the lowest cost, but lead to a projected level of 55 gigatonnes in 2030.” and acknowledges that “much greater efforts to reduce emissions will be needed to keep the global average temperature rise to less than 2 degrees Celsius, by reducing emissions to 40 gigatonnes or 1.5 degrees Celsius.”  [Clarification needed] A series of meetings were held to prepare for COP21, including the Bonn climate change conference from October 19 to 23, 2015 , during which a draft agreement was presented.  The conference negotiated the Paris Agreement, a comprehensive agreement on reducing climate change, the text of which was a consensus of the representatives of the 196 parties.
 The agreement will enter into force if at least 55 countries, which together account for at least 55% of global greenhouse gas emissions, are joined.   On April 22, 2016 (Earth Day), 174 countries signed the agreement in New York  and began to adopt it in their own legal systems (by ratification, acceptance, approval or membership).