What she means is, he quite cleverly did not say the words "I support Roy Moore" or "Vote for Roy Moore." What he did say was the other candidate in the race was BAD on all policy issues and that "we" don't need another Dem in the senate. So, that leaves.......Moore. But Trump didn't come out and SAY IT.
Trump also pointed out, fairly enough, that Moore denies the charges and we have to listen to him, too.
Read by history 100 years from now, those statements will not be construed as a full throated "support of Moore." That's the jackals yipping.
All that said, OF COURSE HE SUPPORTS MOORE. Party (read that "getting my way") before morals. It got Trump elected so why would we expect him to do the right thing now?