President Donald Trump has become a grandfather for the ninth time.

Eric Trump, the president’s son, and Eric’s wife Lara welcomed their son, Eric “Luke” Trump on Tuesday.

The Trump Organization announced the birth on Twitter.

.@LaraLeaTrump and I are excited to announce the birth of our son, Eric "Luke" Trump at 8:50 this morning. pic.twitter.com/b8zRSktcd8

— Eric Trump (@EricTrump) September 12, 2017

President Trump congratulated his son and daughter-in-law on Twitter after the announcement, as did siblings Ivanka and Donald Jr.

Congratulations to Eric & Lara on the birth of their son, Eric "Luke" Trump this morning! https://t.co/Aw0AV82XdE

— Donald J. Trump (@realDonaldTrump) September 12, 2017

Congrats buddy. Welcome to the club. Now that the niceties are out of the way it's older brother revenge for that drum set to my kids😂😂😂 https://t.co/yCW4Wjqh2M

— Donald Trump Jr. (@DonaldJTrumpJr) September 12, 2017

Welcome to the world, baby boy. I can't wait to meet you ❤️ https://t.co/sIkPrFWKO2

— Ivanka Trump (@IvankaTrump) September 12, 2017

Eric Trump and his brother Don Jr., were forceful advocates for their father on the campaign trail and have remained in New York to run the family business.

Lara Trump was also a frequent campaign presence and has been working on the president’s re-election efforts.

(AP)