The North Carolina-born Lara Trump, a former producer at "Inside Edition", was a frequent presence on the campaign trail.
The President of the United States Donald trump became a grandfather for the ninth time.
"[Lara] and I are excited to announce the birth of our son, Eric "Luke" Trump at 8:50 this morning", Dad Eric wrote.
Congratulations to the parents, and let us be the first to say that little Luke is our new favorite Trump. The baby is the first child of the couple.
Eric is the third-oldest of Trump's five children. Holidays are sure to be a loud affair in the White House, should they all choose to celebrate something there.More news: Florida Keys compared to 'war zone' after Category 4 Irma rakes islands
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"Welcome to the world, baby boy", she said.
The last several weeks of President Donald Trump's presidency haven't been easy.
Aunt Ivanka Trump tweeted a welcome message to her nephew.
We really loved the name Charlie, but we'd already named our dog that, so it's out.