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].

[EX Q]: Sen. Tom Cotton (R-Ark.) arrives for a weekly Republican Party luncheon at the U.S. Capitol on Jan. 17. (Jonathan Ernst/Reuters).
 Sen. Tom Cotton (R-Ark.)  last week helped kill the bipartisan immigration deal in Congress.  He  didn't think the bill went far enough in transforming the U.S. immigration system. Like President Trump   Cotton  thinks the United States should cut legal immigration. The senator's reasoning?
âIt can't simultaneously be true that robots will take all the jobs & that the West needs millions of new immigrants to do the grunt work â tweeted  Cotton  in late January  quoting a Wall Street Journal op-ed from a conservative commentator.
âI think itâs certainly critical that we reduce unskilled and low-skilled workers. It canât both be true ... that we need both more unskilled and low-skilled workers  but robots are going to take all the jobs â  Cotton  told Vox.
âTom Cotton is woefully misinformed â said Joe Brusuelas  chief economist at RSM. âRobots will create more jobs.â
[EX A]: Tom Cotton

[EX Q]: Sen. Elizabeth Warren  D-Mass.  said Thursday that the Democratic primary last year was "fair " moving away from the comments she made last week.
"I agree with what Donna Brazile has said over the last few days; that while there was some bias at the DNC  the overall 2016 primary process was fair and Hillary [Clinton] made history  " Warren  said in an interview with MassLive.
Last week  when asked by CNN's Jake Tapper if the Democratic National Committee had been "rigged" to favor Clinton   Warren  answered  "yes."
 Elizabeth Warren : Yes [Link] pic.twitter.com/TjkBS0mbB8 â The Lead CNN (@TheLeadCNN) November 2  2017
"We've got to hold this party accountable " she continued. "When Tom Perez was elected to chair of the DNC  the very first conversation I had with him was to say  'You've got to put together a Democratic Party in which everybody can have confidence that the party is working for Democrats rather than Democrats working for the party.' "
A spokeswoman for  Warren  later told MassLive that  Warren  believes  as  she  said last week  that the DNC was rigged  but that the primary itself was not.
[EX A]: Elizabeth Warren

[EX Q]: The bride said her golden retriever  Norah  is âpart of the fabric of our family â so not including her in the Nov. 4 celebration was never an option.
She and her husband  Kevin Schaefer  have had  Norah  for four years and consider her their âdog-ter â she said.
âShe goes everywhere with me â said the bride. âEveryone knows how obsessed I am with her  so most people asked if  Norah  was going to be in the wedding. We got her a little flower necklace.â
 Norah  was even part of the marriage proposal.
âKevin proposed to me on October 1  2016  at Montrose Dog Beach â Schaefer recalled. âIt was our five-year anniversary and he said he wanted to do it there because I always describe it as âheaven on earth.â  Norah  was right there with us as he proposed.â
As a trained therapy dog  Schaefer said  Norah  is âpretty chillâ and didnât cause any doggy disasters on the big day.
The brideâs late dog   Tandi  who died before Norah came into the couple's lives   was also included in the wedding.
âMy maid of honor  Alex Lister  surprised me by putting a small photo of  Tandi  on my bouquet â said Schaefer. âI  of course  immediately burst into tears as she said  âThis way you can have both your dogs with you on your wedding day.ââ
The couple went on their honeymoon in Asheville  North Carolina. As much as Schaefer wanted to bring  Norah  along   she  stayed at home with  her  mom because  her  husband insisted they needed some time alone.
[EX A]:
Norah