"We feel incredibly grateful & blessed. Thank you all for your support and well wishes!"
Trump and Kushner, the owner of the New York Observer newspaper, began dating in 2007 and got married in 2009.
The grandchild is the third for Trump's father, The Apprentice star Donald Trump.
Donald Trump Jr. and his wife Vanessa are the parents of two children -- Kai Madison, a 4-year-old daughter, and Donald Trump III, a 2-year-old son.
(Photo credit NBC)
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