The Dons (18-11, 8-7 WCC) knocked off defending WCC champion Gonzaga for the third consecutive year with the help of Perris Blackwell, who notched a double-double with 14 points and 10 rebounds.
Michael Williams added 13 points and Angelo Caloiaro chipped in with 10 for the victors.
Gonzaga (21-5, 11-3) couldn't keep its four-game winning streak going despite a game-high 21 points and 11 rebounds from Elias Harris.
Gary Bell Jr. contributed 16 points in the loss.
Attkisson leaves CBS News, reportedly over network's 'liberal bias'
LGBT community has 'bullied the American people': Bachmann