Senate Majority Leader Harry Reid (D-Nevada) mentions the Koch brothers so frequently these days it almost wouldn’t be a Senate floor speech without at least one or two barbs directed at the Republican mega-donors.

And Monday was no exception.

Seven minutes into the new Senate week, he laid into Charles and David Koch, this time comparing them to Vegas magicians and referring to them as “power-drunk billionaires.”

In February, Reid called the Republican benefactors “un-American” in response to anti-Obamacare ads run by a Koch-backed group.

"It's too bad that they're trying to buy America, and it's time that the American people spoke out against this terrible dishonesty of these two brothers who are about as un-American as anyone I can imagine," Reid said on the Senate floor.

Koch brothers-backed groups have already spent tens of millions of dollars attacking vulnerable Democrats on Obamacare, turning them into a popular Democratic target for the midterm elections.