Sen. Ben Cardin is going to a roofing manufacturer in Frederick this morning to promote a bill to accelerate depreciation for energy-efficient commercial roofing, WBAL reports.

Cardin says it would create 40,000 jobs by reducing the depreciation schedule from 39 years to 20 years. That's effectively a tax cut because it increases a business' deductions. This is the kind of targeted tax cut the country needs more of. (To fix the deficit we also need to commit to future tax increases elsewhere! And also cut spending!) Produces jobs. Conserves energy. Heck, Senator, why not just let businesses expense their new, green roofs? (That would make the biggest deduction of all.)