Now that quiet has been found on the Lebanese-Israeli border, the US will continue to work toward a cease-fire in Gaza that ensures the release of Israeli hostages and the end of Hamas' rule over the Palestinian enclave. The recent events in Syria further solidify the need for stability, and the US will work toward that goal.
Hamas is again sabotaging a hostage deal because insufficient pressure has been applied to the terror group. Hamas won't even give negotiators a list of hostages it would be willing to release, turning negotiations into a circus. Some progress has been made in recent weeks, but there's still a long way to go.
The primary obstacle to a deal, as always, is Benjamin Netanyahu. Netanyahu wants to stymie negotiations for his own political benefit. Though the US has said that it wants to see an end to the war, it continues to support Israel and Netanyahu's intransigence.