IT WASN‘T so long ago—last September, to be specific—that a senator with a particular interest in campaign finance reform introduced a bill to provide important transparency in presidential campaigns. The measure, S. 2030, would require presidential campaigns to report the names of fundraisers who bring in “bundles” of individual contributions totaling $50,000 or more. The campaigns would have to report the occupations of the bundlers and the specific amounts they are credited with raising. This was a terrific idea. It’s too bad that the bill’s sponsor, Barack Obama, is failing to follow the rules he set out.