Final answer:
Controversial presidential actions include Bush's environmental policy reversals, Obama's support for an Islamic center near the 9/11 site, and Trump's withdrawal from international agreements.
Step-by-step explanation:
Recent U.S. presidents have taken numerous controversial actions during their terms. One such action was President George W. Bush rescinding environmental protection executive orders and rejecting the Kyoto Protocol on climate change. Another contentious move was President Obama's support for an Islamic community center near the 9/11 Twin Towers site, which raised questions about faith and American values. Additionally, President Donald Trump withdrew the U.S. from international agreements like the Iran Nuclear Deal and the Paris climate accord, signifying a shift in foreign policy.