FILE - This May 31, 2014 file photo shows Sen. Al Franken, D-Minn speaking in Duluth, Minn. The Senate Judiciary Committee has sent to the full Senate a long-shot proposed change to the Constitution

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FILE - This May 31, 2014 file photo shows Sen. Al Franken, D-Minn speaking in Duluth, Minn. The Senate Judiciary Committee has sent to the full Senate a long-shot proposed change to the Constitution that would limit political spending. Members of the Democratic-led Judiciary Committee on Thursday moved forward with an effort to limit deep-pocketed political campaign donors' influence. Democrats have been unrelenting in their criticism of big-dollar donors who often side with Republicans. Senate Democrats plan a vote on the amendment before November's elections. (AP Photo/Jim Mone, File)

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Associated Press
Thu, Jul 10, 2014 6:57 PM EDT