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: Washington (CNN) Sen. Elizabeth Warren delivered an unsubtle criticism of former President Barack Obama in an interview published Monday, saying the former president and other politicians are out of touch with "the lived experiences of most Americans." Warren was interviewed by The Guardian while promoting her new book, "This Fight Is Our Fight," amid heavy speculation about her plans for the 2020 presidential election. That speculation was only fanned over the weekend when President Donald Trump, at a rally in Pennsylvania, suggested that Warren would likely be his 2020 opponent. Speaking to the newspaper, Warren first looked back, attempting to diagnose Democrats' failures in the 2016 election.Warren faulted Obama for what she said was an overreliance on statisticsWarren also discussed Democrats' debate over abortion politics 
 Question:But Warren -- perhaps foreshadowing a fault line for _ in 2020 -- told the Guardian she would "probably not" endorse a candidate who opposed abortion rights.

Democrats