Oregon Sen. Ron Wyden has proposed a three-month transportation bill. Three more months, he says, will give Congress a chance to figure out a long-term solution. The only problem is that Congress had three months three months ago and did nothing. Meanwhile, Sens. Chris Murphy, D-Conn., and Bob Corker, R-Tenn., have proposed to increase gas taxes by 12 cents a gallon. Considering that the gas tax hasn’t been increased in more than 20 inflation-filled years, this would seem to make sense.It doesn’t, however, because a gas tax increase assumes there is a shortage of funds for transportation. Instead, the real...