The transportation secretary’s reality-show-like series is meant to commemorate the nation’s 250th birthday but has faced questions about its funding.

Sean Duffy has caught heat for taking his large family on an extended road trip funded by corporate sponsors—from Google, NBC/Comcast and more—that have spent millions lobbying…

The transportation secretary’s reality-show-like series is meant to commemorate the nation’s 250th birthday but has faced questions about its funding.