Donald Trump's presidency marked a shift towards populism and "America First" policies. His unconventional approach tapped into working-class discontent, promising to restore American greatness through tough stances on immigration, trade, and foreign policy. Trump's domestic agenda included tax cuts, conservative judicial appointments, and deregulation. In foreign affairs, he renegotiated trade deals, engaged with North Korea, and strained relationships with traditional allies. His presidency polarized public opinion and left a lasting impact on American politics.