Trump is reaching a tipping point that will outpoll all other candidates. If he hits 40% it means he is pulling in undecided voters.
Look up any/every issue and Club For growth has been on your side at least 90% of the time, including supporting McDaniels in Mississippi.
The WashPost is trying to make a big deal of this but nothing will come of it. It’s just a typical fight over influence that will work out.