把给定的段落分成5个主题段落，并为每个主题提供一个标题。


Donald Trump Administration Policies:
Donald Trump was inaugurated as the 45th president of the United States on January 20, 2017. During his presidency, he implemented several controversial policies, including the travel ban, border wall construction, and a tax reform package. He also withdrew the United States from several international agreements, including the Paris climate accord and the Iran nuclear deal. His administration was known for its hardline stance on immigration and its emphasis on America First policies. Critics accused him of fomenting division and promoting a culture of dishonesty and corruption. Trump's presidency came to an end on January 20, 2021, after he lost the 2020 presidential election to Joe Biden.
Theme 1: Donald Trump's Presidency
Title: The Controversial Presidency of Donald Trump 

Theme 2: Policies 
Title: Overview of the Donald Trump Administration Policies 

Theme 3: International Relations 
Title: The United States' Withdrawal from International Agreements 

Theme 4: Immigration 
Title: Hardline Stance on Immigration: A Focus on America First 

Theme 5: Legacy 
Title: The End of an Era: Trump's Defeat to Joe Biden and His Legacy