10% incorrect.
Trump's by far biggest ally in Texas is AG Ken Paxton. Though he won his primary, he has to face a runoff in May with Jebbie's son George P. Otherwise, article is correct in that Trump did bat a 1.000
If Trump's reach had been that great, Paxton would have gotten Abbott numbers, beating 2 strong opponents (Huffines and West) by over 50 percentage points.