Cliché corner   

"The virtual certainty of a primary here is drawing the attention of Republican leaders, who see it as a
litmus test of how the Republican Party treats the flood of converts from the Democratic Party."

( New York Times )

"Killing the NEA has become something of a litmus test for the conservative revolution."

( Tulsa World )

"Al Gore Fails Political Litmus Test "

( Arizona Republic )

"But there are some litmus-test conservatives who won't be happy until they read the Welds, Whitmans and Wilsons out of the party...."

( Richmond Times-Dispatch )

"A litmus test for forecasting good drivers is how teens handle their chores at home...."

( St. Louis Post-Dispatch )

from more than 150 references in September