See Obama fist bump 'superhero' kid

President Obama is known for giving fist bumps.

And he probably made 4-year-old Luca Martinez's Saturday when Obama decided to give him one.

Martinez was on the South Lawn of the White House, wearing superhero clothes, with his Associated Press photographer dad, according to CNN.

Obama took a moment to greet the kid in the press area before heading on to Marine One.

Martinez referred to Obama as the "President of Washington," according to ABC News.

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