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: FILE - This is a Thursday  Aug. 31  2017. file photo of European Commission President Jean-Claude Juncker  left  as he welcomes  former British Prime Minister Tony Blair  prior to a meeting at EU headquarters in Brussels.  Blair  on Thursday Jan. 4  2018 was pressing  his  view that voters should be given a chance to re-think Brexit once plans for Britainâs departure from the European Union are clear. (Virginia Mayo  File/Associated Press)
LONDON â  Former British Prime Minister Tony Blair  is pressing  his  long-held view that voters should be given a chance to re-think Brexit once plans for Britainâs departure from the European Union are clear.
 Blair  said Thursday that the Labour Party  he  led for 13 years should be actively challenging Brexit rather than going along with plans laid out by Prime Minister Theresa May and her Conservative Party allies.
 Blair  and other opponents argue that voters should be able to review these terms and decide whether to go ahead rather than be bound by the 2016 referendum  which saw Britons back Brexit by a four-point margin.
âIâm simply saying one very  very simple thing  which is that in 2016 you knew you wanted to get out of the European Union but you didnât see the terms of the alternative relationship â  Blair  told the BBC radio. âIf when you see those terms you think it is better to stick with Europe you are entitled to have that say.â
In an article on his website   Blair  said Labour should challenge May every week at prime ministerâs question time by asking why the Conservatives are âweakening our country.â That approach is only credible   he  said  if Labour is clearly opposed to Brexit.
 Blair âs political stock fell dramatically with public opposition to  his  decision to join the U.S.-led invasion of Iraq  and there are no indications that  his  opposition to Brexit is gaining traction within the party  which has moved sharply to the left since making Corbyn its leader in 2105.

A: Tony Blair
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Q: Bay Area political events : Bernie Sanders , no-hate march . 
Bernie Sanders : Sen. Bernie Sanders , independent-Vt. , speaks at a California Nurses Association-sponsored rally in favor of a single-payer health care system . 
Fifteen Senate Democrats are flirting with a ... more Photo : Andrew Harrer , Bloomberg Bay Area political events : Bernie Sanders , no-hate march 1  1 Back to Gallery .

A: Bernie Sanders
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Q: The two first joined forces in an indie film turned critical darling called Fruitvale Station  which documented the life of  22-year old Oscar Grant  before he was shot and killed by BART police on New Year's Day in 2009. It was a deeply personal  gut-wrenching look at  Grant's  death  and it gave a face to a polarizing debate about race and authority in America — humanizing one the biggest national discussions of its time.
If you missed Fruitvale  which is highly possible if you're not attuned to Bay Area news or if you don't keep up with film festival darlings  it was Coogler's directorial debut that starred Jordan  Melonie Diaz and Octavia Spencer. The film served as a biopic that centered on the day before  Grant  was shot  shedding light on  his  relationships   his  friends  and  his  past.
The entirety of the movies focuses on the intimate details of  his  life  like  his  relationship with young daughter  or how  he 'd recently lost  his  job. It goes so far as to show how  he  interacts with strangers  like  his  warm conversations about marriage with a couple  he 'd just met  or how  he  runs into the middle of traffic to comfort a dog that'd just been hit by a car.
 Oscar Grant's death in 2009  proved to be one of the biggest moments in the debate about police brutality  race  and authority.  It  sparked sprawling protests throughout Oakland  and became one of the most formative events in that city's recent history. The trial over his death later sparked outrage  some arguing that  it  made Grant's life a political fulcrum  including Coogler.

A:
Oscar Grant
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