Buttigieg said "there's a lot to be excited about" in the package that was unveiled Wednesday as part of a sweeping presentation on American infrastructure delivered on the final day of the Western Governors Association annual meeting. The transportation secretary, the fourth cabinet member of the Biden administration to address the group this week, touted the future of electric vehicles, autonomous transportation and the infrastructure improvements that could be made with the previous, $1.2 trillion infrastructure law passed by Congress last year.