HINT: IT HAS MUCH TO DO WITH ORANGE MAN
Among other things, McSally’s advisers write,
Unrest within the Arizona GOP electorate
A significant segment of the AZ GOP was hostile to the President. In internal polling during the primary, President Trump never broke 80% favorability among Republican voters. A certain segment of AZ Republicans was outright hostile to President Trump, and was against the Kavanaugh appointment. This segment of moderate Republicans, especially woman, proved very difficult to bring home to a Republican candidate that supported President Trump and the confirmation of Justice Kavanaugh. These factors, coupled with an opposing candidate who portrayed herself as willing to work with President Trump and who often tweeted her respect and admiration for Senator McCain’s legacy, were significant challenges to McSally’s candidacy.
If you want to read the whole thing, you will find it here.