If things don't change in Gaza, Israel will go back in and 'finish off' Hamas: Sen. Lindsey Graham Sen. Lindsey Graham, R-S.C., weighs in on Hamas, the government shutdown and more on 'Hannity.' NEW You can now listen to Fox News articles! Which country is America’s most important ally ? Hands down, it is Israel. Israel is the only other genuine democracy on the planet that is a nuclear superpower with the will and ability to project hard power across vast distances and which provides the