GIL COHEN MAGEN/AFP via Getty Images
- US Sen. Lindsey Graham defended Israel's retaliatory attacks on Gaza.
- Graham said there was no limit to his support for Israel, despite mounting casualties.
- More than 8,500 people have been killed in Gaza in the attacks, according to the Gaza Health Ministry.
US Sen. Lindsey Graham said that there is "no limit" to the number of civilians it's justifiable for Israel to kill in its war on Hamas.