From the website:
About
TCJ Research is a Republican-backed, privately owned polling group that launched in 2010. We gained notoriety (unofficially) as the most accurate House pollster of the midterm, with our 7 House polls trending to the Republicans by a slim margin of 1.2 points, on average.
Wonder with Realclearpolitics doesn’t use these polls. Would help counteract the crap from PPP.