Regarding Perry’s support of Gore in 1988 ...
Gore was not simply more centrist then. He was considered a conservative Southern Democrat. He was pro-life, pro-guns, pro-defense, and pro-tobacco. His was the last pro-life Democratic presidential campaign. Further, Texas was controlled by Democrats back then. Perry was considered one of the most conservative Democrats at that time.
Why would anyone support Gore over the GOP in that time frame?
Being a Texan is no excuse to overlook Perry's RINO status, or worse, to lie about it.
In 1988, Al Gore was left wing enough to only score 9 in the ACU rating, in 1987 it was 6, in 1986 it was 9.
If in 1988 just as we were on the brink of defeating the Soviet Union, you wanted Al Gore to replace President Reagan, then something was desperately wrong with you.
I agree with you, but you will get nowhere with Perry bashers. No one is good enough for them. Either that are they are Obama supporters, hard to tell.
What has Perry done since then?
A snapshot, or a shot up to some time in the past, is not sufficient to recommend someone when their subsequent behaviour falls short of conservative standards.