Do you just pull this nonsense out of thin air?
As of today, and votes are still being counted, over 3.5 million votes were cast for the senator. Almost 52% of California's registered voters participated in the process earlier this month and the Republican's share of that total, all things being equal, would be about 2.7 million.
So, you're left with egg all over your face as a consequence of your outlandish statement.
Either the senator got votes from almost 70% of the Republican's registered in California, well beyond the 52% average participation, or he got all the Republican votes cast and a million more from other sources. Either way he wasn't let down by conservative, much less Republican, voters.
The Senator was, more factually, let down by the GaGOP who refused to financially support him and allowed their liberal prima donna to provide red meat with which to attack the senator during the 11th hour of the campaign.
Free free to come participate, but leave the garbage in Arizona.