New Delhi, July 28 -- US President Donald Trump was deeply shaken by the sudden death of Senator Lindsey Graham and privately questioned whether the veteran lawmaker's demanding international travel schedule may have contributed to his death, The Washington Post reported.

According to the news outlet, Trump had not expected Graham to die first. At 71, the South Carolina Republican was nearly a decade younger than the President and had remained an energetic presence in Washington and on the international stage until his death earlier this month.

Citing two people familiar with Trump's private conversations, The Washington Post reported that the President repeatedly returned to the subject in the days following Graham's death.

Trump repo...