Make a note of it, Mike Pence has gone negative on John Gregg on June 6...five months before Election Day.
Of course, it's not Pence directly, it's the Republican Governor's Association. They are so concerned about Pence's unstable positioning that they are running this massively negative ad against Gregg.
Gregg's campaign had a response ready to go (and it includes a Republican former representative calling him a fiscal conservative).
The Governor's race is heating up, and it hasn't even hit 90 yet on the thermostat.