The Speaker's gamble

Conservatives claim the bill is an unaffordable boondoggle, while Democrats and prominent centrist Republicans such as Rep. Peter King (N.Y.) say it would gut funding for public transportation, bike paths and pedestrians.

The Hill's Russell Berman and Keith Laing examine the challenges facing Speaker John Boehner (R-Ohio) as he works to cobble the 218 votes needed for passage.

Read more on The Hill's Transportation blog.