Washington DC/IBNS, May 1 -- US national security adviser Mike Waltz is set to quit the Donald Trump administration just weeks after it was revealed that he added a journalist to a Signal chat being used to discuss military plans, media reports said on Thursday.

This marked the first major staff shakeup of President Donald Trump's second term.

Targeting Waltz, Laura Loomer, a far-right ally of the president, reportedly told Trump during a recent Oval Office conversation that he needs to get rid of aides who she believes are insufficiently loyal to the "Make America Great Again" agenda.

Waltz's deputy, Alex Wong, is also expected to follow suit, said reports.

In his second term, the Republican president had been looking to avoid the tu...