The Philadelphia Inquirer's headline understates the concerns here:
It appears that 9.2% of registered voters in Pennsylvania do not currently have a PA driver's license or state-issued identification card. A few may have passports, student ID's with expiration dates, military ID's or government issued employee identification cards. But as the story points out, most voters don't have these approved alternatives.
Supporters of the law will argue that some of these people are dead and some moved out of state. I'm sure that's true. But my guess is that a similar perecentage of new registrants will also lack these ID cards - so there will be freshly registered (and disenfranchised) voters created every day between now and the final date for November registration.
But it gets worse - particularly for a Democratic president. 18% of registered voters in Philadelphia don't have a Pennsylvania issued identification card. Not a huge surprise: many people in a big city, with comprehensive public transit, don't drive.
Of course, big cities have different demographics than the rest of the state. And nobody is going to be surprised if this law has a wildly disparate racial impact, disenfranchising Blacks at astronomically higher rates. Roughly half of Philadelphia's population is African-American. And almost half of all African-Americans in Pennsylvania live in Phillly. So although this new report doesn't tell us much about the demographics of that disenfranchised 9.2 percent, we can all make a rough guess.
Nobody is suprised by this result, I 'm sure, least of all the Republicans who pushed the legislation through Harrisburg. One 2006 one study estimated that 19% of African-Americans lived in homes with no car...compared to 4.6% of whites. So if you're trying to clear the decks for a Republican candidate, voter ID laws are an excellent strategy.