President Donald Trump arrived in Washington, D.C., early Tuesday morning after abruptly leaving the G7 summit in Canada to address the escalating conflict between Israel and Iran.

Whether the U.S. gets more involved than it already is, some members of Congress from both parties argue, should not be up to the President.

President Donald Trump in about eight hours went from suggesting a nuclear deal remained “achievable” to urging Tehran’s 9.5 million residents to flee for their lives.