The conservative Heritage Action for America and the antitax Club for Growth urged a "no" vote on the bill in e-mails Thursday to lawmakers, warning that it will be counted as a key vote on their legislative scorecards.
"This massive bill spends too much money, will continue taxpayer bailouts for highway spending, and keeps subsidies that have contributed directly to skyrocketing tuition rates," Club for Growth spokesman Barney Keller said.
Despite the backlash from such core conservative groups, the bill's supporters expressed confidence. "We got a pretty good reception in conference this morning," Rep. Bill Shuster of Pennsylvania said after House Republicans met on the bill.
After three months of haggling, House and Senate negotiators reached agreement on the package Wednesday. It includes a two-year, $100 billion spending plan for highway and mass transit construction and repairs, $6 billion to prevent rates on new student loans after from doubling after Saturday, and a five-year renewal of federal flood insurance subsidies.
The bill gives states more flexibility over how they spend federal highway aid, consolidates transportation programs, and shortens environmental delays to get highway projects built faster. It also expands a loan guarantee program aimed at increasing private investment in infrastructure projects.
Democrats and Republicans each gave way on issues important to their political constituencies, but both sides also scored victories. Republicans sacrificed proposals to force a go-ahead with the proposed Keystone XL oil pipeline in the Midwest and to prevent the Obama administration from regulating coal ash as a hazardous toxin. Democrats gave ground on safety, biking and pedestrian programs, as well as environmental protections blamed for stalling some road projects.
House Republican leaders pitched the package to their members in a closed-door meeting Thursday morning.
Rep. Bill Cassidy (R., La.) said some conservatives have doubts about voting for the package after House negotiators dropped a House-passed provision requiring the government to approve the Canadian border-Gulf Coast Keystone pipeline. President Obama has vowed to veto the bill if it included the pipeline measure.
But Cassidy said: "There's also concern among conservatives to have a decent infrastructure and some certainty for our [state transportation departments] back home and our contractors so they can build roads. . . . It is a mixed bag. I will just tell you that." He said he was still undecided on how he would vote.