"Invest in America! Pass a multi-year highway/transit bill now," the ad concludes.
The ad comes as the Senate began consideration this week of its two-year, $109 billion proposal for a new Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users, or SAFETEA-LU, transportation bill.
The proposal is vastly different than what has emerged from the House. There, Transportation and Infrastructure Committee Chairman John Mica (R-Fla.) has proposed a six-year bill, which advocates generally favor, but at less spending per year, at $35 billion.
Both proposals are far less than the $556 billion President Obama proposed spending on transportation over six years earlier this year.