I wonder how many states will sign onto this before it starts getting major media attention. Right now, nationwide passage looks so distant that hardly anyone cares about this issue. It gets essentially no media coverage. But what if we get to a point where states representing, say, 180 electoral votes have signed on? The media might start to notice that the country's electoral system is potentially on the brink of changing. It might actually become an issue that people care about, and the nature of the debate in the remaining states would take on a different flavor.
When California becomes member of the pact, then perhaps they will take notice.
