Here's a short story:

(CNN)The 2016 presidential race isn't an abstract parlor game anymore. 

With a seven-paragraph Facebook post on Tuesday, Jeb Bush instantly transformed the nascent campaign. His decision to "actively explore" a presidential bid accelerates the scramble for donors. It also gives the former Florida governor time to figure out how to overcome suspicion in the Republican base while positioning himself as the establishment candidate in a fragmented field. 

The pre-holiday timing of the announcement was a big surprise to many beyond Bush's tight inner circle. Most of the political spotlight has been on Hillary Clinton this year, leaving GOP donors to sit back, hedge their bets and watch the field develop. 

But Bush's decision to make a move now -- 13 months ahead of the Iowa caucus -- speaks to the complicated political decisions facing potential 2016 GOP candidates. They can maintain the coy stance of insisting they haven't made a decision on running, wait out the calendar and hopefully avoid a long, bruising primary like the one that left Mitt Romney damaged in 2012. Or they can start the work now to capture the staff and donors that can take on the Clinton machine. 

Bush chose option B. 

After all, many GOP donors and operatives, who have serious doubts about much of the field but remain uneasy about the prospect of a bruising primary, have been waiting for a clear signal from either Bush or Romney, who is being pressured by many of his longtime supporters to make a third presidential run.  (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: Which candidate has had the overwhelming amount of attention this year?
Guess: Hillary Clinton

Question: Who has announced they will run for president?
Guess: Jeb Bush

Question: How did he do so?
Guess: With a seven-paragraph Facebook post.

Question: How long before the Iowa Caucus did he do it?
Guess: 13 months

Question: What type of candidate is he looking to present himself as?
Guess: the establishment candidate

Question: What obstacle does he need to overcome?
Guess: suspicion.

Question: Why would candidates want to delay announcing their run?
Guess: To avoid a long, bruising primary

Question: Why would they choose instead to start campaigning early?
Guess: It left Mitt Romney damaged.

Question: What did Bush choose?
Guess: To start the work now.

Question: What year is this article about?
Guess: The 2016 presidential race.

Question: Who is being pushed to run for president again?
Guess: Romney

Question: What surprised people about Bush's announcement?
Guess: The pre-holiday timing of the announcement.

Question: What news agency is reporting this?
Guess: CNN

Question: Who has hesitations about the GOP candidates?
Guess: GOP donors

Question: On what day did Bush make his announcement?
Guess: Tuesday

Question: What state was he an official in previously?
Guess: Florida

Question: And what was his position?
Guess: Governor

Now answer the following question in the same format.

Question: Who have donors and operatives been waiting for a signal from?

Bush or Romney.