"I would challenge her to take a lie detector test anywhere on the planet with investigators that are not paid by her to skew the results".
The letter continued: "Your actions have broken my heart into a million pieces - not simply because you have manufactured such unnecessary and unwarranted pain, but by making the choice to not tell the truth as you are puppeteered in this".
"It's heartbreaking, isn't it?" she told Inside Edition.
How will the newly minted royal respond to her father leaking the letter to the press? Please allow us to live our lives in peace.
"You've said I never helped you financially and you've never asked me for help which is also untrue", the note reads. "On a daily basis you fixated and clicked on the lies they were writing about me, especially those manufactured by your other daughter, who I barely know" Meghan added.
Mr Markle was countering media reports that he has not reached out to her after an unnamed friend of the duchess told USA magazine People: 'He's never called; he's never texted. "You can hate me if you want", he wrote.
They also expressed their concerns for Meghan and her unborn baby.
Kensington Palace has never commented on any of Thomas Markle or Samantha Grant's interviews or claims. He's never called; he's never texted.
Thomas Markle published the five-page letter from the Duchess of Sussex at the weekend after close pals of Meghan gave interviews to a USA magazine. In the handwritten letter, dated August 2018, Meghan Markle addressed a number of issues from her father's staged paparazzi photos ahead of her wedding-which Thomas Markle and Meghan Markle's half-sister Samantha Markle took credit for-to his absence at the royal affair and financial assistance she's attempted to provide him. This comes after Meghan has said she hardly knows the estranged 54-year-old who she shares a father with.
"When I opened the letter I was hoping it was the olive branch I'd longed for", he said.
Meghan Markle can't seem to catch a break when it comes to family.