Given a document, find the main entity about whom the author is writing. Write the full name if mentioned in the text. Note that URLs in the text have been replaced with [Link].

[Q]: ROUGH CUT ( NO REPORTER NARRATION ) U . S . Defense Secretary Jim Mattis on Tuesday played down an apparent split between the U . S . president and his top diplomat over outreach to North Korea   saying America ' s focus was still on finding a diplomatic solution to the dispute with Pyongyang . President Donald Trump   who has traded insults and threats with North Korean leader Kim Jong Un in recent weeks   said on  Sunday Secretary of State Rex Tillerson  was " wasting  his  time " trying to negotiate with North Korea over its nuclear weapons program .  Tillerson    during a trip to China on Saturday   said the United States had direct channels of communication with the North and was probing Pyongyang to see if it was interested in dialogue . He expressed hope for reducing tensions with North Korea   which is fast advancing toward its goal of developing a nuclear - tipped missile capable of hitting the U . S . mainland . " I do not see the divergence as strongly as some ... have interpreted it  " Mattis said . " President Trump ' s guidance to both Secretary Tillerson and me has been very clearly that we would ... pursue the diplomatic effort to include with the various initiatives with China  " Mattis told a Senate hearing . " I believe that Secretary Tillerson is accurately stating that we are probing for opportunities to talk with the North . All we ' re doing is probing . We ' re not talking with them   consistent with the president ' s dismay about not talking with them before the time is right ."
[A]: Rex Tillerson


[Q]: And yet , as just about everyone with internet access is now aware , Texas Sen. Ted Cruz , a Republican presidential candidate in 2016 , appeared to have liked a pornographic video on Twitter overnight . 
We do n't know for sure it was Cruz himself who did the "liking" -- as the senator explained this morning , "There are a number of people on the team that have access to the account and it appears that someone inadvertently hit the like button ." 
Below Cruz discusses the scene -LRB- that is , the one inside the court -RRB- with CNN 's Jake Tapper . 
JUST WATCHED Ted Cruz on watching porn with Justice O'Connor Replay More Videos ... MUST WATCH Ted Cruz on watching porn with Justice O'Connor 01:38 . 
But that conversation , and others surrounding his book , did n't come close to being the first time Cruz happily discussed pornography on camera . 
In February 2016 , during the Republican primary season , the Cruz campaign posted a web video featuring an actress who had appeared in erotic films . 
Asked by some unknown interviewer about his life 's ambitions , the young Cruz pauses for effect , then announces : "Well my aspiration is to , oh I do n't know , be in a teen tit film like that guy who played Horatio . 
-LRB- Politico guessed Cruz was referencing 1986 's The Malibu Bikini Shop . -RRB- 
"It happened that one of the actresses who was there had a more colorful film history than we were aware ," Cruz told reporters on the trail . 
Cruz 's talents would send him in other directions . 
Cruz did not appear in the scrubbed campaign clip , but he has spoken -- and written -- at some length about another unlikely run-in with the adult film industry . 
This was years ago , when Cruz was a clerk on the high court for the late Chief Justice William Rehnquist . 
As Cruz recalled it in his memoir , O'Connor , Rehnquist , and their respective clerks gathered for an exhibition -- as it related to a case they were considering on the regulation of online porn -- in a small room .
[A]: Ted Cruz


[Q]: Wearing curve-hugging black workout pants and a white tank top   Kim Kardashian  perches on a couch in the media room of  her  newly renovated Bel Air estate and sips Pedialyte through a straw. The makeup-free 36-year-old appears almost normal â certainly not like a mogul who  according to Forbes  banked $45.5 million the past year from a brand she built on self-Â­aggrandizement  shameless product peddling and nude selfies. At the epicenter of this unprecedented trajectory remains E!'s Keeping Up With the Kardashians  a living record of her happily debauched family â Kourtney  38; Khloe  33; Rob  30; Kendall  21; and Kylie  20; as well as matriarch Kris  61  and her ex Caitlyn Jenner  67 (who in 2015 transitioned from Bruce). On Sept. 24  a 90-minute special will celebrate the series' 10th unapologetic year. It's a head-scratching milestone for a show that    at  its  conception  offered viewers little more than a voyeuristic lens into the lives of a celebrity-adjacent family â but quickly became the mother ship for all their product extensions and the platform through which Kris and her five daughters ushered in the era of the reality celebrity as a brand.
Keeping Up With the Kardashians now airs in 167 countries  boasts nine spinoffs to date and has ranked as E! Entertainment's top-rated series since 2010. And while it peaked in 2011 with 10.5 million viewers over two nights for  Kim 's fairy-tale wedding to Kris Humphries (they divorced after 72 days)  it still averages north of 2.1 million every Sunday in its 13th season. In 2015  E! agreed to a reported $80 million deal to keep the family through season 14. But that's a pittance compared to the fashion and lifestyle empire they've built from one boutique in the Valley. With a combined social media reach of 700 million-plus followers and five insanely profitable apps  the family mints millions from a hodgepodge of endorsement deals  paid appearances and can't-stay-in-stock products. And it all grew from a show that opened its pilot with these prophetic words from  Kim  (already notorious for the sex tape  she  made with  her  ex  Ray J  that was made public in 2007): "I hate you all."
Kim Kardashian (star  executive producer) I was going to [Pierce College]  and after school I would go work the cash register at our store  Dash. This all happened when I was 27 â¦
Kourtney Kardashian (star  executive producer) We had talked to producers about doing a show about the three of us running the store  Dash  where Khloe and I would do the day-to-day  and  Kim  would come in as a stylist. It didn't go anywhere.
Ted Harbert (then-CEO of E! Networks) Just like anybody else  I knew of the family through [O.J. Simpson attorney] Robert Kardashian. There was a bit of the stuff with  Kim  hanging around Paris Hilton and  of course  the fun with Ray J [who made a sex tape with Kim]. That was sort of world news.
Damla Dogan (senior vp development & programming  E!) They were just crossing over into pop culture territory  especially  Kim .  She  had a look that wasn't on TV at the time.  She  wasn't stick thin  and that was relatable.
 Kim  I don't think any of us thought it would.
Khloe Kardashian (star  executive producer) I don't think we knew what we were even saying yes to. Everything was just super-fast.  Kim  and my mom were steering the ship. We were just like  "Tell us where to be and we'll be there."
Kris The watercooler chatter from the first episode was all about [9-year-old] Kylie jumping on a stripper pole.  Kim  had one installed in my bedroom and our friend Robin Anton  who is the founder of The Pussycat Dolls  was just messing around  and Kylie hops up there  twirls around a couple times  and it became this thing.
 Kim  When we would travel  I remember people calling mine  Kourtney  and Khloe's names and we thought they knew us from high school or something. We just didn't get it. Then they started chasing us down at the airport. That was the first time that we were like  "Oh my God."
Khloe In Armenia  I've never seen so many people. I got separated from  Kim  and everyone  and they all got in the van and left. I was like  "Hello? I'm still in the fucking crowd of people!" Everyone forgot about me and Erin Paxton  our audio mixer  took her boom and literally fished me back into our producer's van.
Kris There was barely Twitter when we started. Ryan called  Kim  and said  "There's this thing called Twitter you might want to pay attention to." The girls [began] embracing their audience and sharing their lives.
 Dow Kim  sort of paved the way for the economic structure of native influencer marketing. Before the rise of the common man YouTuber in their bedroom  you had people like  her .  She  was the one who kicked down the door and got the brands to spend money in that area because  she  showed success. Brands noticed that when when you would pay a celebrity to send out a branded tweet  they were getting more click-throughs for the dollar  so it made more monetary sense. That's why that revolution started.
Dow When  Kim  did the cover of CR [in 2013]  that's when  she  was anointed. It's Carine Roitfeld's magazine  Karl Lagerfeld shot it and Riccardo Tisci art-directed. Fashion washes away all sins. That's when  she  went next-level.
In August 2011   Kim  married NBA player Kris Humphries. The E! special of the $6 million wedding earned the network its highest ratings to date and more than $10 million in ad revenue.
 Kim  There was all this attention on the wedding  and I thought maybe it was just the pressure of the show giving me this anxiety. My friends told me I just had cold feet  but even the producers said  "You don't seem happy. You don't have to go through with this." The night before  my mom pulled me aside  off camera  and was like  "This isn't it for you. Why don't you go away and I'll handle it?" I felt like    if I pulled out now  everyone's going to think I just did  it  for the show. Then afterwards  people were saying  "You have to stay married for a year " but I physically couldn't do  it . When I made the decision [to divorce]  everyone said it was made up for the show. Everyone really wanted to take me down.
[A]:
Kim Kardashian