Senior White House advisor Stephen Miller has embraced his baldness, returning to television without the apparent spray-on hair that brought him in for intense mockery.

Miller, 33, appeared on CNN's The Situation Room on Thursday night to discuss President Donald Trump's renewed vow to force a government shutdown if he does not get wall funding.

Beltway observers instantly noticed a gleam on Miller's pate that was absent on Sunday, when he appeared on CBS Face The Nation with an odd-colored widow's peak that looked anything but natural.

An immigration hawk, Miller drew withering mockery from liberal critics for his mysterious change in hairline - but the derision did not let up after he reverted to his usual appearance.

Following his appearance with what appeared to be spray-on hair on Face The Nation on Sunday (left) Miller appeared on CNN on Thursday (right) with his typical hairline

On CNN Thursday, Miller discussed Defense Secretary James Mattis' resignation announcement, and advocated strongly in favor of Trump's plan to demand $5 billion in wall funding before signing a spending bill needed to avert a partial shutdown at midnight on Friday.

Twitter wags were more interested in his changing appearance than his policy message, however.

'Wait did Stephen Miller's spray on hair resign in protest as well?' one user asked.

'Stephen Miller's hair: Hair today, gone tomorrow,' wrote another.

Following the intense mockery that Miller's surprise hairdo prompted over the weekend, Washington Post columnist Monica Hesse questioned whether it would be as socially acceptable to mock a woman's appearance in the same way.

'Those who mocked him Sunday were likely those who loathed him already; we’re always more forgiving of the physical appearances of people we love,' Hesse wrote.

'But the other thing this saga highlights is that we don’t know how to talk about men’s appearances and cosmetic procedures.'

Hesse notes that the growing consensus on how to discuss changes in a woman's appearance is from a 'supportive, body-positive perspective,' citing gushing headlines praising Hillary Clinton for going without makeup for a major speech.

Stephen Miller appeared on CBS on Sunday to push for Trump's border wall project and guarantee that a government shutdown was on the table - while sporting a new widow's peak

Jess Dweck, a writer on The Tonight Show starring Jimmy Fallon, connects the dots between Stephen Miller's policy and public appearance

Such introspection was lost on the Twitter mob following Miller's fateful appearance on Sunday, however.

'Dude is so desperate to build a wall he started building one on his head,' wrote Jess Dweck, a Tonight Show writer.

Comic Patton Oswalt went with an allusion to spray-painted street art with the comment, 'Banksy strikes again!'

Trump, known for his own unique hair, has not made any comment regarding his spokesperson's changes in appearance.