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:
Rex Tillerson could be on  his  way to serving one of the shortest tenures of any Secretary of State in U.S. history.
âThere are no personnel announcements at this time â White House spokesman Sarah Huckabee Sanders said in a statement. â Secretary Tillerson  continues to lead the State Department and the entire cabinet is focused on completing this incredibly successful first year of President Trumpâs administration.â
âHeâs here.  Rex  is here â he said.
If  Tillerson  leaves in the next few months   he  would likely be viewed as one of the most underperforming secretaries of State in U.S. history with one of the shortest tenures to boot  say experts on American foreign policy.
âIt will ratify what is emerging as almost a consensus view that  Rex Tillerson  was the worst Secretary of State in modern time â said Paul Musgrave  a political science professor at the University of Massachusetts-Amherst who studies American foreign policy. âI actually think there is a good case to be made  ever.â
If  Tillerson  leaves in the next few weeks   he  will have served for roughly a year  inordinately short for a first-term Secretary of State in the modern era. The last three first-term secretaries of State â Warren Christopher  Colin Powell and Hillary Clinton â all remained in their posts for the entire term.
Aside from his short time in office   Tillerson  has little to show as accomplishments.
answer:
Rex Tillerson


question:
Stephen Colbert  discusses 'Our Cartoon President ' Showtime's new animated series  at the Television Critics Association. The late-night host is an executive producer. (Photo: Frederick M. Brown/Getty Images)
CBS Late Show host Stephen Colbert â who can thank Trump for vaulting him to the top-rated late-night host â is behind Our Cartoon President  an animated series due on Showtime Jan. 28. The half-hour series will open by anticipating Trump's first State of the Union address two days later. The show will then settle into its regular time slot Feb. 11  when Homeland also returns.
More:  Stephen Colbert  to produce 'truish' cartoon series about Trump White House
 Stephen Colbert  is behind Showtime's animated series 'Our Cartoon President' (Photo: Showtime)
"The show is the interpersonal relationships of people you don't see; the relationships you imagine they have  " Colbert  told the Television Critics Association Saturday. "What we're trying to capture with this show is how stable his genius is."
answer:
Stephen Colbert


question:
âEquity investors are beginning to become so concerned about the potential downside for stocks that they are starting to irrationally pay up for short-term protection when longer-term protection is cheaper â  Brian Reynolds   asset class strategist at New York-based Canaccord Genuity  said in a note.
âWe expect this one will have a similar outcome â said  Reynolds .
But much will depend on how the trading session ends   Reynolds  said.
âIf it were to close in this fashion  it may lead to a further multi-week pullback in stocks â said  Reynolds .
answer:

Brian Reynolds