Read President Obama's Simple Tribute as David Letterman Signs Off

President Barack Obama summed up the feelings of a nation in one tweet as David Letterman ended his 33-year run as a late-night legend on Wednesday night.

Obama has appeared as a special guest on the Late Show on three different occasions. The two appeared to establish a rapport.

During his final appearance on the Late Show two weeks ago, the President suggested meeting up with Letterman after he left office for a game of dominoes or a trip to Starbucks to swap stories.

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