More than half of likely U.S. voters remain unfamiliar with the billionaire Koch brothers after months of Democratic attacks, a poll released Tuesday found.
The brothers, especially Charles and David, the two still affiliated with Koch Industries, have given millions of dollars to conservative causes and candidates. Senate Majority Leader Harry Reid, D-Nev., suggested earlier this month in a speech on the floor that they want "an America where the system is rigged to benefit the very wealthy.”