CNN released a new poll Wednesday evening showing John McCain leading Kelli Ward in the August 30 Arizona Senate primary by 26 points (55 percent to 29 percent).

If the CNN poll is accurate, it would seem that McCain's antagonistic relationship with Donald Trump hasn't hurt him a bit in his home state. McCain's 26-point lead is almost identical to the margin by which he beat congressman J.D. Hayworth in 2010, just two years after he was the Republican party's presidential nominee.

The same CNN poll shows McCain running well ahead of Trump in the general election: While McCain leads Democratic congresswoman Ann Kirkpatrick by 13 points (52 to 39 percent), Trump only leads Clinton by 5 points (49 percent to 44 percent).

Trump now leads Clinton by 1.5 points in the RealClearPolitics average of Arizona polls. Since 1952, the state has voted for a Democratic presidential candidate just once.