instruction:
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].
question:
"An American first: a president who was obviously mentally ill the moment  he  took office  " Krugman  tweeted along with a New York Times report that Trump brought up debunked claims that millions of people voted illegally in the election  causing  him  to lose the popular vote  during a Monday night meeting with Congressional leaders.
 Krugman  has criticized Trump repeatedly since  his  election â questioning Trump's business conflicts of interest   his  Cabinet nominees  the involvement of Russia in  his  election  and more. But this is the first time  Krugman  called into question the mental fitness of the president.
 Krugman  has also been critical of Comey  arguing that Comey's letter to Congress regarding the renewed investigation into Hillary Clinton's use of a private email server swung the election in Trump's favor.
 Krugman  highlighted part of a Washington Post article about Trump's attitude after the election. "Read it and shudder " he wrote.
In subsequent tweets   Krugman  said that despite Trump's best efforts  the growing difference between increasing US interest rates due to rate hikes from the Federal Reserve and the interest rates throughout the rest of the world would increase the strength of the US dollar. A strong dollar would be harmful to US manufacturing  offsetting any pro-manufacturing policies from Trump   Krugman  said.
answer:
Paul Krugman Paul


question:
Sep 26  2017; Jersey City  NJ  USA; U.S. Team assistant captain Tiger Woods during The Presidents Cup golf tournament at Liberty National Golf Course. Mandatory Credit: Bill Streicher-USA TODAY Sports
JERSEY CITY  New Jersey (Reuters)  - Tiger Woods  said  he  was âoptimisticâ about  his  golfing future while at the same time publicly acknowledging what has been obvious for some time  that  he  might never return to competitive golf.
The American former world number one won the last of  his  14 major titles in 2008 and the 41-year-old has only played six competitive rounds in the past two years while trying to recover from multiple back surgeries.
âYeah  definitely. I donât know what my future holds for me â  he  said on Wednesday on the eve of the Presidents Cup when asked whether there was a scenario that would not allow  him  to compete again.
âI donât know what 100 percent (healthy) means after eight surgeries  but Iâll try and get as close as I can to that number â  Woods  added.
 Woods  was peppered with questions during a news conference with his three assistant Presidents Cup captains and the four International assistants  who often looked bored at the focus stayed on the second most prolific major champion of all time.
Sep 26  2017; Jersey City  NJ  USA;  U.S. Team assistant captain Tiger Woods  during The Presidents Cup golf tournament at Liberty National Golf Course. Mandatory Credit: Bill Streicher-USA TODAY Sports
 Woods  seemed destined to become the most prolific major winner of all time when he won the 2008 U.S. Open  moving within four titles of the record of 18 held by Jack Nicklaus.
answer:
Tiger Woods


question:
PARIS (Reuters) - Tom Enders  has told the French Presidency  he  will not seek a third mandate as chief executive of European planemaker Airbus (AIR.PA)  Le Figaro daily reports on its website.
 FILE PHOTO - Airbus Group Chief Executive Tom Enders  speaks during a news conference on the aerospace group's annual results  in London  Britain February 24  2016. REUTERS/Hannah McKay
“According to our information  the last board meeting of 2017  this Thursday  should ratify the non-renewal of  Tom Enders  at the helm of the group following the expiry of  his  mandate in May 2019 ”  the Figaro  said  without citing  its  sources.
“Tom informed the Elysee very recently he would not seek a third mandate ” a source cited by  Le Figaro  said.
answer:

Figaro