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: If your mum posted a video of you belting out Madonna's "Holiday" in the car on your birthday  you'd probably want to melt into a puddle of embarrassment.
Unless your mum happens to be Madonna.
Celebrating the birthday of her son  David Banda   Madonna  posted an Instagram video to  her  10.2 million followers on Sunday. The video features David having a delightful singalong worthy of Carpool Karaoke  to his own mum's 1983 hit single  "Holiday."
Go David!! ððð¦.Its your birthday!!! ðððððð We Gonna Party! â½ï¸â¥ï¸â½ï¸â¥ï¸â½ï¸ðâ½ï¸ Like its your birthday!! ððð¦ðð¦ðððððððð!! Its Time to Celebrate! ððð¤¡ pic.twitter.com/W1WcENjb0R â Madonna (@Madonna) September 24  2017
 Madonna  adopted David from Malawi in 2006. Here's another Instagram post from pop's proud  proud mum  posted on Sunday and featuring a mini David:
Happy Birthday to My Beautiful baby Boy!! ðððððððððð David Banda!! ð¦ð¦ð¦ððððð I wish I could stilll carry you Bapu Style! â¥ï¸ð¯â¥ï¸ð¯â¥ï¸ð¯â¥ï¸ð¹ð²ð¼ð²ð¼ð²ð¼â¥ï¸ðð» A post shared by  Madonna  (@madonna) on Sep 24  2017 at 3:10am PDT

A: Madonna
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Q: Hamlin   who said the 2018 games will be her last  said receiving the honor from her fellow American athletes has been a bit surreal  and she expects she'll be emotional.
"Winning a medal is the effort you put in and the time and the work and sacrifice to succeed and achieve something "  Hamlin  said. "That's all on me. That's something I've done. Getting this honor is different because its people looking at the work you've put in and acknowledging that. It's my fellow Team USA athletes who gave me this. That means a ton."
"The nerves will be flying for sure "  Hamlin  said. "I slide that's what I do. Put me at the top of a track; that's my happy place. Walking out in front of a lot of people and even more people watching from home ... that's going to be way more nerve wracking."
 Luger Erin Hamlin  poses with U.S. flag after it’s announced Team USA athletes picked  her  to serve as flag-bearer for opening ceremonies. pic.twitter.com/tZFiFgkQsd — Aamer Madhani (@AamerISmad) February 8  2018
 She  joked that one of  her  siblings offered sage advice.

A: Luger Erin Hamlin
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Q: Close video For all the hype  Nunes memo delivers sad trombone for  Trump  Rachel Maddow points out that despite two weeks of Fox News hype  the Nunes memo is not only underwhelming as a political stunt  it actually undermines the argument it was meant to make for  Donald Trump . share tweet email save Embed
It’s genuinely difficult to find an angle to the House Republicans’ “Nunes memo” that helps its intended beneficiary:  Donald Trump . Every key argument the president and  his  allies hoped to advance has fallen apart   and after weeks of over-the-top hype  Republicans are actually worse off than they were before the previously classified materials were released to the public.
5.  Trump ’s grammar  use of quotation marks  and capitalization of random words is bizarre for an American adult in a position of authority.
In early March   Trump  told the public that  he ’d “just found out” that former President Obama illegally tapped his phones at Trump Tower before the presidential election. “This is Nixon/Watergate ” the Republican said. “Bad (or sick) guy!”
As regular readers may recall  two weeks later  as it became clear that the confused president had relied on a nonsensical report from a right-wing website   Trump  nevertheless told reporters he felt “somewhat” vindicated about his conspiracy theory  thanks to support from House Intelligence Committee Chairman Devin Nunes (R-Calif.).
 Trump   of course  hadn’t been vindicated. On the contrary  his entire conspiracy theory had been thoroughly discredited  and he accused his predecessor of a felony for no reason. But in the president’s mind  it was clear he’d been right from the start.
And nearly a year later  here we are again  watching  Trump  once again claim vindication  reality be damned.

A:
Trump Rachel Maddow
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