Donald Trump Jr. tweeted at Hillary Clinton Hillary Diane Rodham ClintonJoe Biden looks to expand election battleground into Trump country Biden leads Trump by 12 points among Catholic voters: poll The Hill's Campaign Report: Biden goes on offense MORE for her birthday on Thursday, jeering at her tweet from one year ago proclaiming herself the future president.

"A year later the arrogance and entitlement in this tweet is exactly why it was never going to happen," President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE's eldest son said alongside a Clinton tweet from October 2016.

The former Democratic presidential nominee turned 70 on Thursday.

A year later the arrogance and entitlement in this tweet is exactly why it was never going to happen. #maga pic.twitter.com/zQ68AQpPE0 — Donald Trump Jr. (@DonaldJTrumpJr) October 26, 2017

Clinton's 2016 birthday tweet came less than two weeks before the 2016 election on Nov. 8, when she lost the presidential election to Trump despite winning the popular vote.

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Donald Trump Jr. wasn't the only Twitter user who noticed the former secretary of State's 70th birthday. She also received a shout-out from Rep. John Lewis (D-Ga.).