Donald Trump is poised to become the 47th US president. But Trump's tenure as 45th US President was a turbulent and unprecedented period in American history, marked by controversies, scandals and polarisation- sometimes protests.
Trump who had no prior experience in military or government, defied many norms and expectations of presidential behaviour and often clashed with the judiciary, Congress, media and even his own staff. His unconventional and often erratic leadership style raised queries about the resilience and integrity of US democratic institutions and traditions.