in all-important Ohio , where it was allowed for each of the five weekends before Election Day four years ago, and this year is allowed for only one. It's hard not to draw a line between that narrowing and a study released last month by the Lawyers' Committee for Civil Rights Under Law, which found that black voters vote early at 26 times the rate of white voters. This study was conducted in Cuyahoga County, an Obama stronghold. Then there's this statement in the Washington Post from the Ohio AFL-CIO , which is campaigning hard for the president:  "This is what works for working-class folks. If they have a 9-to-5 job, they've got kids to pick up and a lot going on, the weekend is when they'll be able to get time to go vote." I suppose you could argue that given the resistance from Republicans, it's amazing that early voting happens at all in swing states. The federal appeals court that forced Ohio to open the polls for this past weekend pointed to "the unacceptably burdensome situation at many Ohio polling sites during the 2004 election where, in some countries, voters were required to stand in line for long hours and until late at night." The lesson of the weekend from Florida is that cut off by officials like the Miami-Dade mayor, early voting can also leave voters hanging. Maybe the hope is that if you frustrate people enough, they'll quit asking for it. But what we should want