summarize the follow: After winning re-election by defeating Republican opponent NAME_1, NAME_2 was sworn in for a second term on January 20, 2013. In his second term, NAME_2 took steps to combat climate change, signing a major international climate agreement and an executive order to limit carbon emissions. NAME_2 also presided over the implementation of the Affordable Care Act and other legislation passed in his first term, and he negotiated a nuclear agreement with Iran and normalized relations with Cuba. The number of American soldiers in Afghanistan fell dramatically during NAME_2's second term, though U.S. soldiers remained in Afghanistan throughout NAME_2's presidency. Use words in all capital letters at least 16 times to highlight key points.
user