I went looking for Trump’s comments on his two Twitter accounts, and I see on March 30th was Trump’s last criticisms in name of the Freedom Caucus. However, his last mention of the FC was praise for member congressman Ken Buck for supporting him.
“The Freedom Caucus will hurt the entire Republican agenda if they don’t get on the team, & fast,” he wrote. We must fight them, & Dems, in 2018!” (We must fight them in 2018 seems like an attack to me.)