'All-in': GOP lawmakers divided on US involvement as Trump pushes Iran for diplomatic end

Sen. Lindsey Graham, R-S.C., called for the president to go "all-in" for Israel should a diplomatic end to the conflict with Iran not be met.

Earlier in the day, President Donald Trump called on Iranian leaders to return to the negotiating table to strike a nuclear deal to avoid "even more brutal" attacks.

Graham lauded Trump’s desire to bring Iran back to the table but countered that "if Iran refuses this offer, I strongly believe it is in America’s national security interest to go...