[Whitfield:] The police force in Freeport, Texas, has gone beyond the call of duty to make a dying girl's wish come true. CNN's Ed Lavandera introduces us to honorary officer Abigail Arias.
[Unidentified Male:] The tattoo I'm getting in the Freeport, the police department badge. Get it on straight.
[Ed Lavandera, Cnn Correspondent:] Rammel Arias wants to always carry the shield of his hero, a Freeport Texas police officer, badge number 758, an officer on a mission fighting bad guys.
[Unidentified Male:] What's your name?
[Officer Abigail Arias, Freeport, Texas Police:] 758.
[Unidentified Male:] 758. I wanted to put that 758, because that's her actual badge number, and it's actually in her manned writing. Guess whose writing this badge number is?
[Arias:] Yours.
[Unidentified Male:] Yours.
[Lavandera:] The ink honors his niece, Officer Abigail Arias?
[Unidentified Male:] It is pretty cool?
[Arias:] That looks -.
[Unidentified Male:] Better.
[Lavandera:] The newest 6-year-old boot-strutting cowboy hat wearing Freeport police officer.
[Unidentified Male:] What an honor. I promise.
[Arias:] I promise.
[Unidentified Male:] To protect.
[Arias:] To protect.
[Lavandera:] In February Abigail was sworn in by a police by Chief Raymond Geragos, it was her dream.
[Chief Raymond Geragos, Freeport, Texas Police:] You couldn't have picked a better role model to put on that uniform and represent law enforcement and in general first responders.
[Unidentified Male:] Does the police uniform help you fight the bad guys?
[Arias:] Yes, sir. It keeps me brave.
[Geragos:] When she wears, it she wears it with pride. She wears it with dignity. She respects it the way we should respect it. On top of that she's fighting something that you and I are not fighting.
[Lavandera:] The dream is actually a dying wish. Abigail is battling a rare cancer that has spread through her body.
[Geragos:] I'm just blessed that we were the chosen ones to be able to do her life-long dream of wanting to be a police officer.
[Unidentified Male:] Her cancer right now is terminal. It derives from the kidney and is a rare cancer, but it's common in kids.
[Geragos:] She's fighting for her life.
[Arias:] So my bad guy is in the lungs.
[Unidentified Male:] Her cancer is the bad guys. And if you ask her, she will tell you that the bad guys are still in there. Oh my goodness. What do you do with those?
[Arias:] Arrest people.
[Lavandera:] Bryan Klevens is the owner of prison break tattoos. He calls it a safe haven for first responders. He has seen it all here with this work of art left him in tears.
[Bryan Klevens "bk", Owner, Prison Break Tattoos:] Never in my six years have I had someone come in to memorialize a child that is still here with us, something is giving her strength. Now that I got your badge, I'm always going to be fighting the bad guys with you. We are going to beat them bad guys, baby. Yes? You know I love you, right? You are the strongest, toughest little kid I've ever known. We have to pray that she beats this.
[Geragos:] She has work to do here. I know he wants her up there, but we are going to be selfish today. We need her here.
[Unidentified Male:] Lord, here we are in this special place with this special little angel.
[Klevens:] It's like a shield for me, too, man, and it's to be able to know that I'm doing this for her and that I have a piece of her for the rest of my life.
[Lavandera:] It's a permanent badge of honor.
[Arias:] Where do we go next, daddy?
[Lavandera:] Ed Lavandera, CNN, Houston, Texas.
[Whitfield:] Still ahead, the President versus the U.S. Congress. Trump ramps up his attacks on Democrats demanding he comply with their subpoenas at the same time that he is trying to block more than 20 Democratic investigations. We are live from the White House next.