Those nationwide infrastructure bills should distribute funds to the districts and states according to who voted for or against the bill. The bill passed, but you voted against it? Nothing for your district that you would have received even if it's in the bill.
Give any control to states of federal funding and it's the most vulnerable who suffer.
And that creates a whole load of angry people suffering who tend to fall for rhetoric blaming others for their problems.
Republicans gain votes by making people angry, poor, and powerless.
If the Democrats want to flip a swing state the best way to do it is making people better off.
The fact Republicans then try to get credit is irrelevant. If Republicans need to say how much "they" improved things it's them saying how positive things are and evidence the damaging messages the party usually spews are failing. This representative is panicking because of the infrastructure bills effect.