Sen. Barbara BoxerBarbara BoxerTime is now to address infrastructure needs Tom Steyer testing waters for Calif. gubernatorial bid Another day, another dollar for retirement advice rip-offs MORE (D-Calif.), who is managing the highway bill, hailed progress made on Tuesday and said she feels confident that after more than a month, the Senate will finally pass the highway legislation on Wednesday.

"We have made incredible progress on this bill," she said. "I look forward to tomorrow when we will complete work on this bill. I think we are showing a bipartisan spirit and bipartisan cooperation. It feels good that we are going to pass our bill."

This article was updated to reflect Sen. Collins' recent engagement.