The new GOP primary litmus test: Loyalty to Trump

Taxes, spending and even health care have taken a back seat to the most potent new litmus test in Republican primaries: allegiance to President Donald Trump.

Even as the president spars with members of his own party and his approval rating has plummeted to historic lows, Republican Senate campaigns across the country are preparing to use instances of disloyalty to Trump to bludgeon primary opponents who’ve gotten on the wrong side of the president. CONT.

Kevin Robillard, Politico