Voters will put an end Tuesday to the incessant ads in Nevada's highly competitive race for U.S. Senate.
It will determine who takes the mantle from powerful longtime Sen. Harry Reid and possibly decide which party takes a majority in the upper chamber.
Reid reluctantly opted not to seek a sixth term after an exercise injury left him blind in one eye. He's committed to doing everything he can to hand the torch to two-term former Nevada Attorney General Catherine Cortez Masto.
She faces a formidable foe in three-term Republican Rep. Joe Heck. The wonkish doctor and brigadier general represents the GOP's only potential pickup opportunity in a year they're playing defense.
But Heck's taken heat from both sides of the political spectrum over his middling stance on Donald Trump.