Ish Smith's floater with 7:05 left in the first half gave the Suns a 47-35 lead, and his driving right-hand layup made it 50-36 with 5:59 left. Marcus Morris hit a 3 off a feed from Dragic to make it 55-41, and Dragic scored the final four points of the half as the Suns closed it out on a 9-0 run.
Dragic hit 10 of 14 shots in 27 minutes of action and has 20 or more points in four straight games.
"I'm more relaxed," Dragic said. "I know how the opponent is going to guard me. . It feels like I'm playing basketball with my friends back home, no pressure and I just go there and do my job, I get great support from my teammates and it's just fun."
The Bobcats failed to score for the final five-plus minutes of the first half. The Suns' defense on Jefferson was a major factor as they double-teamed the big man at times or sent a player over to stab at the ball as soon as he caught it.
"We didn't have the energy that we needed, we weren't making shots, no excuses," Jefferson said.
The Bobcats had won their last two games, the first stops of a four-game western road swing.
NOTES: The Bobcats were without guard Kemba Walker, whose 18.7 points and five assists per game were missed. Walker has been out with a sprained left ankle for two weeks and is expected to return soon. ... Saturday was Fan Appreciation Night at the US Airways Center. About half the crowd received "Go Suns" foam fingers. ... Injured Suns guard Eric Bledsoe has been out since Jan. 2, but he is the featured player on bobblehead dolls that will be given to fans at the next Suns home game, Tuesday against the Chicago Bulls. ... The balls used for Saturday's game were among the first ones to bear the signature of new NBA Commissioner Adam Silver. ... The two teams wore warm-up shirts bearing the Twitter hashtag "#NBABHM" in honor of Black History Month.