How is Electoral Titan and Hero of the Ancestrally Republican Suburbs John Cornyn not overperforming Trump!?
They are both up by 5ish.
I'd be very surprised given the national climate and assuming that stays the same if Trump won Texas by 5 and one sketchy CBS poll should not change that.
Cornyn/Hegar is more of a wildcard just because polls for Hegar have been underwhelming and it's mid-August. Still, it wouldn't surprise me if that ends up going down to the wire as Hegar becomes more known and Cornyn isn't a strong enough incumbent for me to think he's a shoe in to significantly outrun Trump.