Washington DC/IBNS, Feb. 24 -- Tech billionaire Elon Musk's "justify-your-job" rule for US federal employees met with strong backlash from within Donald Trump's administration on Sunday in what is seen as an early sign of power struggles.

This comes as Federal Bureau of Investigation director Kash Patel reportedly asked all FBI employees to "pause any responses" to Musk's email ultimatum to federal workers.

Musk sent these emails as part of his supposedly unofficial role as the leader of the Department of Government Efficiency (DOGE).

On Saturday, Trump's billionaire advisor Musk said that all US federal employees must justify their work or they will lose their jobs.

The move came hours after the US President pushed him to be "more ag...