In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].

(CNN) In their final meeting before pivotal nominating contests Tuesday in Ohio and Florida, the four remaining Republican presidential candidates are sharing a debate stage once again -- this time in Miami, where CNN's Jake Tapper takes the reins as moderator. Here are a few of the most memorable lines from Donald Trump, Ted Cruz, Marco Rubio and John Kasich. (For the blow-by-blow, check out the CNN live blog.) Trump makes the case he's bringing in new voters to the GOP: "One of the biggest political events anywhere in the world is happening right now with the Republican Party. Millions and millions of people are going out to the polls and they are voting. ... The Republican establishment, or whatever you want to call it, should embrace what's happening."Trump on Trump's success: "The Republican establishment, or whatever you want to call it, should embrace what's happening"Rubio: "I'm against any changes to Social Security that are bad for my mother"Kasich: "I'd be maybe running for president of Croatia if it weren't for immigration" 
 Question:Kasich perhaps leaving some room for contesting _ at the convention: "Math doesn't tell the whole story in politics."
Donald Trump

John Sutton Jr has spent the first Saturday of May the same way since he was 8 years old - on the sidelines of the Kentucky Derby. To commemorate his dedication to horse racing, Churchill Downs - the track that hosts the race every year - is inviting the 84-year-old man to attend his 76th-straight Kentucky Derby as their special guest on May 2. This week, Sutton invited a reporter from WAVE 3 into the Louisville home he shares with his wife of 61 years Doris, where she spoke about his very first Derby and showed off his impressive collection of racing memorabilia.John Sutton Jr was just 8 years old in 1940, when his blacksmith father took him to his first Kentucky DerbyThe 84-year-old Louisville native hasn't missed a race since, and has amassed an impressive collection of memorabilia over the past 76 racesChurchill Downs, the racing grounds that hosts the competition, has invited Sutton to watch the event for free as a special guest on May 2 
 Question:Through the years: The _ programs got more and more colorful over the years.
Kentucky Derby

(CNN) -- The mother of missing Alabama teen Natalee Holloway talked to the family of a murdered Peruvian woman whose case may be linked to her daughter's, the Peruvian family told CNN's sister network In Session. Beth Holloway gave the Flores family her "sincere, sincere condolences" when they spoke for the first time Wednesday, Enrique Flores told In Session's Jean Casarez. Flores' sister Stephany was killed May 30. Joran van der Sloot, who is being held in connection with the killing, was twice arrested but never charged in the disappearance of Natalee Holloway in 2005. Beth Holloway told Enrique Flores she hoped his family would not go through what her family had suffered, he said.Stephany Flores' family speaks to Holloway's mother for the first time, victim's brother saysThe two families are linked by Joran van der Sloot, held over Flores killingVan der Sloot twice arrested but never charged over Natalee Holloway disappearanceEnrique Flores hopes Van der Sloot trial can ease both families' pain 
 Question:Police have said they think _ killed Flores to steal money she won.

Joran van der Sloot