As early voting approaches in North Carolina, John Fund of National Review Online devotes a column to some of the problems tied to the early voting process.

There’s no doubt that many people in our increasingly mobile and hectic society want voting to be as easy and convenient as buying fast food. But too much of anything can be bad — just ask someone who has gorged on drive-thru burgers and fries. A new poll by the Huffington Post, conducted by YouGov, found that nearly half of adults say they vote before Election Day at least sometimes, and a third say they do it often. We should listen to what cautionary voices are telling us before we redefine ourselves as a nation of convenience voters and abandon one of the only remaining occasions on which Americans come together as a nation to perform a collective civic duty.

The notion of Election Day isn’t just a tradition; it’s in the Constitution. Article II, Section 1 states that “Congress may determine the Time of choosing the Electors, and the Day on which they shall give their votes; which day shall be the same throughout the United States.” Congress codified this requirement in 1872 by setting a uniform presidential election date. But in a rare bow to the notion of federalism, today’s courts have nonetheless been reluctant to invalidate state laws that go against this dictate. In 2002, a panel of the U.S. Court of Appeals for the Ninth Circuit upheld Oregon’s vote-by-mail law because of “a long history of congressional tolerance” toward absentee voting. It rejected arguments from the Voting Integrity Project that Oregon’s effective end to voting in person represented “the difference between the exception to the rule and the exception that swallows the rule.”

How is early voting changing our campaigns? They are increasing their costs and difficulty. Steve Schale, a Democratic strategist and adviser to gubernatorial candidate Charlie Crist, says of early voting: “Clearly it changes the whole way we campaign. It used to be you would build a whole campaign around Election Day.” Richard Smolka, an American University academic who published a newsletter for election officials for 40 years until his death last year, mourned the fact that early voting had made campaigns more costly and more complicated. Smolka cogently identified one of the main reasons so many state legislatures have approved early voting: “It’s incumbency protection,” he said. “It takes more money and more organization to deal with a longer voting period. It exacerbates their advantages.”

Such concerns are echoed by Christian Adams, a former Justice Department official. “Incumbents and Washington insiders love early voting because they already have the money and staff to monitor the integrity of the voting process,” he told the Washington Times. “They know that challengers and local candidates can’t afford it.”

Having fewer election observers to monitor the actual casting of ballots inevitably increases the potential for fraud. Even diehard opponents of voter-ID laws at polling places point out the dangers of fraud in the casting of absentee, by-mail ballots. (Though they acknowledge this growing risk of fraud, they continue to support the passage of early-voting laws that often involve the broader use of absentee ballots.)