Hillary Clinton, the 2016 Democratic nominee for president, endorsed Clark County Commissioner Chris Giunchigliani for Nevada governor on Sunday in a robocall posted by the candidate's Twitter account. The robocall is not Clinton's first -- she recorded endorsements for Stacey Abrams' gubernatorial campaign in Georgia and J.B. Pritzker's gubernatorial campaign in Illinois -- but it does represent a to-date rare foray into politics for Clinton after the 2016 election. Clinton, despite being the Democratic standard bearer less than two years ago, has largely sat out the 2018 midterms. Clinton touts Giunchigliani, who faces a Democratic primary in Nevada against fellow...