Changes in Trump's positions have pleased critics worried about his campaign promises but upset some of his supporters. Trump has a history of altering his stances during the campaign, leading to the possibility that he may change his positions again before or after his inauguration on Jan 20. One example of this is his stance on prosecuting Hillary Clinton, which he had promised to do if elected. However, during a New York Times interview on Nov 22, Trump indicated that he no longer wished to pursue legal action against Clinton, stating that he wanted to focus on moving forward rather than looking back. "I have no intention of causing harm to the Clintons. Absolutely not." Despite this statement, he refused to confirm that he was completely ruling out the possibility of investigating Clinton. Regarding climate change, Trump has dismissed global warming as a hoax and has expressed his desire to withdraw the US from the 2015 Paris Agreement, which involves nearly 200 nations and went into effect on November 4th. He has instead expressed his intention to focus on developing affordable coal, shale, and oil resources. According to a source within Trump's transition team on November 12, advisers were exploring options to avoid the lengthy process of withdrawing from the climate accord. In an interview with the Times on November 22, Trump indicated that he was considering taking America out of the forefront of addressing climate change, stating that he had an open mind on the issue and would carefully consider it. When asked about his beliefs on human activity causing climate change, he acknowledged some connection but was uncertain about the extent of it. "It all depends on the extent." During his campaign, Trump stated his intention to repeal the Affordable Care Act put in place by President Obama, referring to it as a disaster. He proposed replacing it with a plan that would grant more authority to states over the Medicaid health plan for low-income individuals and allow insurers to sell plans nationwide. In a Wall Street Journal interview on Nov 11, Trump mentioned the possibility of retaining certain aspects of the law, such as allowing parents to keep adult children on their insurance policies until age 26 and prohibiting insurers from denying coverage based on pre-existing conditions. Trump informed the Journal that Obamacare would either be modified or completely replaced. During his campaign, Trump made several promises regarding immigration, including building a wall along the US-Mexican border to reduce illegal immigration and having Mexico pay for it. He also discussed deporting illegal immigrants and implementing a temporary ban on Muslims entering the country for security reasons. Although he never took back these statements, towards the end of the campaign, he modified his proposal to temporarily suspend immigration from areas known for exporting terrorism and lacking proper vetting procedures. In an interview with CBS program "60 Minutes" on Nov 13, Trump confirmed his intention to build a wall but suggested it could be a combination of wall and fence. He mentioned that he would use a fence for certain areas and a wall for others, stating that he is skilled at construction. When asked about deporting illegal immigrants, he indicated that the priority would be on those with criminal backgrounds, estimating the number to be around 2 to 3 million. Trump also expressed support for the use of waterboarding and other harsh interrogation methods on terrorism suspects, despite it being considered torture and banned under President Obama. In a recent interview with the Times on November 22nd, Trump mentioned being impressed by Marine General James Mattis' response when asked about waterboarding. Mattis stated that he performs better with a pack of cigarettes and a couple of beers than with torture. Although Trump's view on waterboarding remained unchanged, he was impressed by Mattis' belief that it may not have as big of an impact as some people think.