And as for why it happened, I'm no expert on the Texas procedures, but what my friends there tell me is that the governor opposed a measure put forward by Democrats in the legislature to expand the number of children that would be covered. And instead directed the money toward a tax cut, a significant part of which went to wealthy interests.
Most Texans also supported the measure.
( z1 support :ARG0 ( z2 person :mod ( z3 state :name ( z4 name :op "Texas" ) ) :quant ( z5 most ) ) :ARG1 ( z6 measure ) :mod ( z7 also ) )