Updated

Last Thursday, in his speech at Bowie State University, President Obama accused the U.S. Chamber of Commerce of trying to "steal our democracy" by funding campaign activities with donations from foreign contributors. The chamber denied this charge immediately, insisting donations from foreign nationals were not used for political campaigns (that has been illegal since the 1907 Tillman Act). The White House produced no evidence to the contrary.

This weekend, the Democratic National Committee escalated its assault with a TV ad claiming that former GOP National chairman Ed Gillespie and I "even take in secret foreign money to influence our elections." The ad was referring to two groups for which Mr. Gillespie and I are informal advisers and fund-raisers: American Crossroads and Crossroads GPS. Neither accepts foreign contributions.

These smears were too much even for the New York Times, which noted on Saturday that "Democrats have offered no evidence that the chamber is using foreign money to influence the elections." Brooks Jackson of FactCheck.org wrote the next day that "accusing anybody of violating the law is a serious matter requiring serious evidence to back it up. So far Democrats have produced none." And when CBS anchor Bob Schieffer asked White House senior adviser David Axelrod for corroboration that the chamber was spending foreign money on American elections, Mr. Axelrod answered, "Well, do you have any evidence that it's not, Bob?" Mr. Schieffer incredulously responded, "Is that the best you can do?"

Karl Rove is a Fox News contributor and the former senior adviser and deputy chief of staff to President George W. Bush.

To continue reading his column in The Wall Street Journal, click here.

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