India, April 26 -- In his losing battle with Joe Biden for the US Presidency, his Republican challenger Donald Trump often claimed that Biden was "low energy", calling him "Sleepy Joe". Subsequently, it turned out that Trump may have been right, for Biden had been harbouring cancer for years, unknown to him or to his doctors. It is astonishing that the cancer was discovered only after Biden bid adieu to politics after his successor as candidate Kamala Harris lost to Trump. The present US President was verbally merciless on President Biden, taunting him for "always being in the basement". It was a subsequently proved fact that Biden was physically unable to handle the rigorous lifestyle of a US President. During that time, the Biden camp c...