Via Jeffrey Goldberg at The Atlantic, came across this poster
There is been some response from the Californian Republican Party:
The taxpayer movement is growing rapidly in response to government overspending and an increasing tax burden. Yet, as is often the case, some who espouse fringe views are attempting to use the taxpayer movement to promote their own cause. In this case, that fringe cause is anti-Semitism. To allow such actions to continue or succeed threatens the entire taxpayer movement by giving its opponents the opportunity to paint the whole movement as racist or extreme
Note that the concern is for “threatening the taxpayer movement” by associating racist or extreme connotations.