The only way for Hamas to score points against Israel is to launch some sporadic rockets in the direction of Israel, ultimately baiting Israel to make a "disproportionate attack". Israel seldom disappoints at this game even though Israel has only lost by playing it. When Israel makes such an overblown attack, killing a number of civilians, Hamas doesn't gain points, but Israel loses points, achieving the same effect. Using this strategy has not put Hamas in favor with the international community, but it has managed to put Israel in a worse light than Hamas. This is the only sort of victory that Hamas can score against Israel at the moment, and they have grown quite good at it. Israel knows that this game is a loser for them, but the only other option they think they have is to do nothing. Deterrence for either side is not in the cards.
Iran deal opposition grows among U.S. Republicans, Reuters poll shows (Reuters)
from the article: Escalation with Gaza will likely be contained within a few days