Diane Black

Corker's careful balancing act on Trump knocked off kilter

Despite Sen. Bob Corker's refusal to say whether he'll seek a third term, the Tennessee Republican had spent months carefully saying and doing the right things to avoid provoking a spirited primary challenge next year.

He limited public appearances back home largely to friendly civic clubs and chambers of commerce meetings, where he could regale members with tales of his pro-business agenda and blunt assessments of congressional dysfunction, all while steering clear of direct criticism of President Donald Trump.

Until last week.

Trump's defense of white nationalists following a violent rally in Virginia that left a protester dead caused Corker to issue a blistering...