Washington DC - A day after being hit with nine counts of tax evasion as part of a new indictment, Hunter Biden complained that Republicans are out to get him.

The 53-year-old son of President Joe Biden was accused on Thursday of evading at least $1.4 million in tax between 2016 and 2020.

This marked the second time he has been charged by a special counsel investigating his personal and business dealings.

But in a new interview with musician Moby, Biden focused his ire on Republican politicians.

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"What they’re trying to do," he told Moby, according to the Huffington Post, "is they're trying to kill me, knowing that it will be a pain greater than my father could be able to handle, and so therefore destroying a presidency in that way."

Taking a jab at some of his biggest critics in Congress – in particular, far-right Georgia Representative Marjorie Taylor Greene – the Yale-trained lawyer called them "sad, very, very sick people" who he speculated were traumatized.

"They’ve decided that they are going to turn into an evil that they decide that they’re going to inflict on the rest of the world."

The new charges serve up more embarrassment for Joe Biden as he heads for a likely rematch with Donald Trump next year, and fends off a Republican bid to impeach him on grounds that he benefited from his son's overseas business dealings.

Biden senior kept silent Friday when reporters asked if he believed his son was innocent.

The president was leaving the White House to board his Marine One helicopter for a trip to Nevada and California, during which he will unveil major rail investments, including the first high-speed train in the US.