The duchess wrote a long note describing times in her childhood when she was forced to engage in middle-class activities, like getting a job as a teen for gas money and eating at a salad bar, to push for the national paid family leave program tucked into Democrats' budget reconciliation plan for social spending.
"Ms. Markle's latest interference in U.S. politics reignites the question in my mind as to why the Royal Family does not simply strip her and Harry officially of their titles, particularly since she insists on sending this under the pretense of being the Duchess of Sussex," said Rep. Jason Smith, R-Mo.
"While her attempts at appealing to working-class families by recalling her days of eating at Sizzler, were laughable. Her comments make crystal clear that the passage of this massive tax-and-spend bill is aimed more at helping global elites get huge tax breaks than helping the working families she claims to have dined with."
The letter ignited suggestions that Markle was using the "tactics of an aspiring politician" to lobby two senior Washington figures on Joe Biden's proposed parental and sick leave legislation in a 1000-word letter addressed on the Sussexes' own headed paper.
"Meghan Markle is incredibly out of touch with the American people and should stick to acting instead of trying to play politics," Rep. Lisa McClain, R-Mich., told the DailyMail.
"The last thing we need right now is wealthy celebrities pushing their liberal agendas on the American people."
Last October, Smith asked the Crown to strip Harry and Meghan of their titles over interference in the U.S. election.
In comments made on the election at the end of September, as some states had begun their early voting, Prince Harry asked people to "reject hate speech," while Meghan called November 3 the "most important election of our lifetime."
The Royals' specialists have further questioned whether Americans will be impressed "by her account of how she had to struggle" on $4.99 salads from Sizzler when her estranged father Thomas put her through private school from kindergarten, and she presently lives in a $14million L.A. mansion, while sitting on a $100million fortune.
The Duchess of Sussex's letter was sent, she insists, as an "engaged citizen and a parent and as a mom" - though is being regarded as her most overtly political intervention in U.S. life, yet after speculation, she has dreams of being a Democrat politician or even to run for U.S. President.