Power Line's charts guy - Steve Hayward - has a good one today. He writes, "Here’s the data on the rates of job growth in right-to-work versus compulsory union states."
"Right-to-work" means you cannot be forced to join a union as a condition of new or continued employment, even if the workers where you work have chosen to be represented by a union.
The rate of job growth in RTW states is more than double that in non-RTW states. For obvious reasons employers prefer to do business in RTW states where unions are less powerful.