A Democratic senator introduced legislation on Monday to prevent U.S. President Donald Trump from using military force against Iran without Congress's authorization, as an escalating battle between Israel and Iran raised fears of broader conflict.

The U.S. president faces pushback over the risk of U.S. involvement in the escalating conflict between Israel and Iran.

Israel hit more targets in Tehran and Iranian missiles fired at Israel killed at least 14, as the conflict entered a third day

Tehran has asked Qatar, Saudi Arabia and Oman to press U.S. President Donald Trump to use his influence on Israel to agree to an immediate ceasefire with Iran in return for Tehran's flexibility in nuclear negotiations,

An Israeli plan to assassinate Iranian Supreme Leader Ayatollah Ali Khamenei as part of its military offensive targeting the country's nuclear program has been privately vetoed by U.S. President Donald Trump.

President Trump urged Iran to return to negotiations over the future of its nuclear program to end conflict with Israel. “They should talk and they should talk immediately before it’s too late,” Trump told reporters on Monday in Canada,

Israel and Iran both have little incentive to stop and no obvious route to outright victory. Much depends on President Trump.