Democrats have touted the infrastructure bill Congress passed in 2021 as a signature accomplishment of the Biden-Harris administration, but some of its ambitious projects have fallen far short of expectations nearly three years after President Joe Biden signed it into law.

A massive program to expand rural broadband access has failed so far to connect any homes to the internet. A push to electrify school bus fleets has proved costly and inefficient. And a multibillion-dollar effort to build thousands of electric vehicle charging stations across the country has so far yielded just a handful of stations.