defeat Hillary Clinton in the general election. A national poll by CNN/ORC released on September 20, in the wake of the second Republican debate held at the Ronald Reagan Presidential Library, revealed that Walker's popularity among likely Republican voters had dropped to less than half of 1 percent. On September 21, 2015, Walker suspended his campaign and asked other candidates to do the same, so that the party could rally around a conservative alternative to Donald Trump. Once considered a front-runner for the Republican nomination, Walker's campaign suffered from two lackluster debate performances, low fundraising and an inability to raise his profile among the 16 other GOP contenders. On March 29, 2016, Walker endorsed the candidacy of Ted Cruz. After Donald Trump became the presumptive nominee for the Republican Party in May 2016, Walker stated that he would support Trump as the Republican nominee, saying that Trump would make a better president than Hillary Clinton. Walker withdrew his support for Trump on June 8, 2016, after Trump called the judge Gonzalo P. Curiel biased against Trump because of Curiel's Mexican heritage. While still maintaining that Trump would be better choice than Clinton, Walker noted that Trump was not yet the party's nominee and wanted Trump to renounce his comments on the judge before the 2016 Republican National Convention. Walker also prepared then-Indiana governor and Republican vice-presidential nominee Mike Pence for his debate against Virginia senator and Democratic vice-presidential nominee Tim Kaine on October 4, 2016. After elected office In July 2019, Walker told the Milwaukee Journal Sentinel that he would become the president of Young America's Foundation, a conservative student organization, in 2021. He also told the paper that the position would preclude his running for office in the next years which would rule out a Senate run or a return to the governorship in 2022. On July 17, 2019, President Trump appointed Walker to the board of trustees of the Woodrow Wilson International Center for Scholars in the Smithsonian Institution. Political positions Abortion Throughout his life and career, Walker has opposed abortion. In 2010, Walker told the editorial board of the Milwaukee Journal Sentinel he opposed abortion, without exception for rape or incest. Regarding his stance on abortion, he has stated: "I don't apologize for that, but I don't focus on that; I don't obsess with it." In a TV ad during his 2014 campaign for re-election Walker identified