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 government.

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.