If you were referencing the NPR article, "Trump in news conference says 'all hell will break out' if Gaza hostages not released", there is no evidence of efforts made by Trump since it was before he took the White House. ABC has an article, "Trump threatened 'all hell' if Hamas didn't free all its hostages. What happened?", explaining that Hamas met a deadline of Feb. 15th by releasing a mear 3 hostages. This lead to more threats from Trump towards Hamas but a lack of any clear plan for the conflict.