Again, how? If anything, Hunter Biden being at the White House saves the taxpayer money. There's no need for an additional security detail (which you pointed out cost $30,000/month).

There still are additional security for his home, wife and kids. I wonder if Hunter's disowned daughter receives any protection.
Just serving Hunter meals is at a cost for taxpayers.

Umm, c'mon. Ivanka and Jared were in the Trump administration. Ivanka, as your article details, used private email for government business.

It still didn't stop the dems from their constant investigations to find any detail they could use against Trump. It's all common knowledge.

What about Hunter hobnobbing and all expense paid trip by America's taxpayers
Snip
'If ever there were a question as to Hunter Biden's whereabouts, the answer this week was obvious: He was overseas, glued to President Joe Biden's side during the entirety of a whirlwind trip that mixed global diplomacy with a sprawling exploration of his ancestral roots.

There was Hunter, chatting with U.K. Prime Minister Rishi Sunak on the tarmac in Belfast. There he was again in Dublin, huddled in the rain with Irish Taoiseach Leo Varadkar. He was in County Louth, absorbing the sights. In a local Dundalk market, he surveyed the menu, interrupting his dad's conversation to suggest he may order something.

Joe Biden: 'I'm here with my sister, Valerie, and my youngest son, Hunter Biden,' the president told residents at a pub in Dundalk. 'Stand up, guys. I'm proud of you.'

Also Valerie's cost paid for by taxpayers.

politico.com - Hunter biden ireland side.