Barack Obama wrote a heartwarming message to his wife Michelle on their 26th anniversary

  • Wednesday marked Barack and Michelle Obama's 26th wedding anniversary.

  • In a post on social media, the former president shared a picture of his wife looking out the window of an airplane, saying she was his "favorite person to see the world with."

  • Michelle responded by thanking her husband "for being a man who always lifts up and honors me and our wonderful girls."

Former President Barack Obama wrote a sweet message for his wife Michelle on Wednesday as they celebrated their 26th wedding anniversary.

"Happy anniversary, @MichelleObama. For 26 years, you've been an extraordinary partner, someone who can always make me laugh, and my favorite person to see the world with," Obama wrote in the post, which included a picture of his wife looking out an airplane window.

PHOTOS: Their love story

The former first lady quickly responded and thanked her husband for "26+ years of love, trust and respect" and "for being a man who always lifts up and honors me and our wonderful girls."

"Each day I'm with you, I'm reminded of what a treasure you truly are to us all," she added.

The Obamas were married on October 3, 1992, three years after they met at the Chicago law firm Sidley & Austin. In June 1989, Michelle Robinson was assigned to mentor her future husband, as he completed a three-month summer associateship.

According to a 2007 Chicago Sun-Times article, Michelle initially tried to set Barack up with friends because she didn't want to get involved with a subordinate at work.

But she agreed when he asked her out about halfway through the summer. Their first date was to see Spike Lee's movie "Do The Right Thing," followed by the Art Institute and a stroll down Michigan Avenue.

"It was fantastic," Michelle said of her first date in a 2004 interview. "He was definitely putting on the charm. ... It worked. He swept me off my feet."

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Obama popped the question two years later. A child of divorce, Obama expressed some misgivings about the institution of marriage to his girlfriend during their time dating. When he brought the topic up again over a fancy dinner, Michelle told him it was time to get serious. When the waiter brought out dessert, an engagement ring box was on the plate.

"He said, 'That kind of shuts you up, doesn't it?'" Michelle recalled.

Five years after tying the knot, the couple welcomed their first daughter, Malia, in 1998. She is now a college sophomore at Harvard University. Their second daughter, Sasha, was born in 2001. She turned 17 this summer and is a senior at Sidwell Friends School in Washington, DC.

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