Longtime Hillary Clinton aide Huma Abedin is scheduled to testify before the House committee investigating the 2012 terrorist attacks in Benghazi, Libya, in the coming weeks. Chairman Trey Gowdy (R-S.C.) told reporters on Thursday that Abedin would appear before a closed-door meeting of the committee at some point before Clinton’s public testimony on Oct. 22. Abedin serves a top role in Clinton’s front-running 2016 presidential campaign and was her deputy chief of staff during Clinton’s time as secretary of State. Abedin is also the wife of former Rep. Anthony Weiner (D-N.Y.). The news about her appearance came after another former...