Packaging things this way lets representatives and senators more effectively barter for support - "I'll support this bill if you add this other thing" is more e

Packaging things this way lets representatives and senators more effectively barter for support - "I'll support this bill if you add this other thing" is more effective tactic with these large omnibus bills. You can argue if this is good or not for the country, but the argument definitely is that it allows a representative more tools/leverage for his constituency, and that it allows for more effective compromises. Any attempt to reversing this trend requires dealing with that line of argument.