It’s always nice to hear someone on TV say EXACTLY what you are thinking.
Some may think this is a Newtian neologism, but interestingly, this has a history.
The noun-as-adjective has been used by Republican leaders since the 1940s and appears in some GOP national platforms since 1948.
Democrat as an adjective was still sometimes used by some twentieth-century Republicans as a campaign tool but was used with particular virulence by the late senator Joseph R. McCarthy of Wisconsin, a Republican who sought by repeatedly calling it the Democrat party to deny it any possible benefit of the suggestion that it might also be democratic.