So a Republican being up just 1 in their own internal means that they're going to win? I guess if an O'Rourke internal showed him up 1, that would mean that O'Rourke would win.
Actually, the Arizona Secretary of State recently reported that McSally is ahead by over 90 000 votes. And in the Maricopa County, the county that will likely decide the outcome of this race, her lead there is even larger than Trump's margin of victory there in 2016.
He didn't say McSally is ahead by 90k. He said there were
90,000 more registered Republicans that have voted so far than registered Democrats. That's a massive difference that hacks like you ignore entirely.
Under your logic, West Virginia is a Democratic stronghold with its ~10% Democratic registration lead and Kentucky is pretty Democratic because of its registration lead being D+8.