From a review of SEC filings and Google Finance, there were 85 Texas Non-Oil & Gas Companies with stock market caps of above $1 bil in early June 2020 and which reported Pretax Income (Loss) From Continuing Operations in their annual financial statement earnings information filed with the SEC for each of the most recent twelve years (Years from 2008-2019). I only included Companies with headquarters located in Texas in at least 6 of these 12 years. And I included Power Generator Calpine, which was sold for $5.6 bil in late 2017 but continued to file annual 10-Ks on the same accounting basis with the SEC through 2019.
The table below shows the Pretax Income (Loss) From Continuing Operations for each of these 85 Texas Non-Oil & Gas Companies for fiscal year end 2019, the last year of the Trump Administration's first three full years in office so far, for fiscal year end 2016, the year before the start of the Trump Administration as well as also the last year of the Obama Administration, and for fiscal year end 2008, the year before the start of the Obama Administration.