I followed your link to the self-proclaimed non-partisan, non-profit policy organization Texans for Public Justice. They have a list of donors to Bush's presidential bid, with their allegged faults [icons for pollution, corporate CEO, lobbyist, beneficiary of corporate welfare, etc]. They do not have a similar list for either Al Gore or Ann Richards.
They complain about the quality of life: here are a few excerpts:
Texas education has improved over the past decade but remains mired in mediocrity. Texas ranks No. 36 in teacher salaries, with more than a quarter of Texas teachers holding down second jobs. We are No. 32 in spending per student. ...
(No mention of test scores, percentage of graduates who go on to college, ...)
Just six states have a wider income disparity separating the richest from the poorest fifth of their populations.
With no state income tax, Texas ranks No. 2 in its dependency on sales taxes, which shift a heavy share of the burden to the working poor.
The Lone Star state is the nations leading host of gun shows, which exempt gun buyers from the normal rules requiring criminal background checks.
In other words, that source is raving lunatic liberal, and should not be relied on for any information about an alleged connection between Enron and Bush.