Again, WI Cong. Glenn Grothman, (R-Town of Dog Whistle)

US Congressman Glenn Grothman (I know, deep dissonance there) represents Wisconsin's 6th District, which is 93.6 white and 1.6% Black.

Maybe that explains why, as he's running for re-election, that Grothman would opine out-of-context that the Rev. Al Sharpton was a frequent White House guest of President Obama - - earning an unvarnished "true" rating from PolitiFact because there is no rating category for 'true, but so what, and your dog whistle is defeaning.'

This isn't the first time that Grothman has offered up some unprompted race-baiting. 

In his press release, [then State Sen.] Grothman says "almost no black people today care about Kwanzaa -- just white left-wingers who try to shove this down black people's throats in an effort to divide Americans," and called for the holiday to be "slapped down."

Another example, here.

To be fair, Grothman has managed to broadly smear women without regard to race, so credit where credit is due: 

Wisconsin Senator Who Introduced Anti-Single Parent Bill Says Women ‘Trained’ To Lie About Planned Pregnancies

[Talk show host Alan] Colmes: You think women want to have homes without fathers? You think women look to the opportunity to have to raise kids and not be able to get work because they have to stay home and take care of the kids. Women want to do this? 

Grothman: I think a lot of women are adopting the single motherhood lifestyle because the government creates a situation in which it is almost preferred.  

No wonder the comedian John Oliver calls Grothman an example of a politician who "managed to get elected."

Which helps explain why Grothman's seat could be in play, perhaps with the ironic assistance of a national group led by President Obama's colleague and former Attorney General.