Definition: 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].
Input: Republican front-runner Donald Trump still lacks experience apologizing, but he told 'Tonight Show' host Jimmy Fallon that he's open to the idea – provided he ever makes a mistake. 'I totally think apologizing is a great thing, but you have to be wrong!' he joked on Friday. 'I would absolutely apologize – hopefully sometime in the distant future – if I'm ever wrong.' Trump and Fallon shifted gears back and forth between the serious and the funny during The Donald's first late-night TV interview since launching his presidential campaign on June 16. The funnyman host joked that Trump had caught flack for taking the stage Wednesday at a tea party rally in Washington to the tune of REM's 'It's the end of the world as we know it' – a choice that enraged the band's very liberal members.Republican front-runner does his first late-night TV interview since launching his presidential campaignReveals that his wife predicted 'If you run, you will win'Calls his surging candidacy 'a movement going on that's amazing to watch'Pokes fun at himself in sketch as Fallon plays his mirror image, joking about tricking Mexico into building border wall with giant Jenga gameSays Hillary Clinton's email scandal is 'wrong' and soft-pedals feud with Carly FIorina, calling her 'a really nice woman' – before saying he's never met her 
 Question:But the _ is a laugh-fest, not a snooze-fest.

Tonight Show