Leslie Moonves helped make CBS a TV juggernaut, but the brawl over a Viacom merger could lead to his exit

Moonves, through a spokesman, declined an interview request Thursday as the company prepared for what was expected to be a contentious board meeting. Board members who are not tied to the Redstones voted to reduce the Redstones’ nearly 80% voting stake in CBS to 17%. That measure won’t take effect anytime soon, as it must survive scrutiny of the Delaware courts. The Redstones, for their part, suggested the vote was moot.