People attend a rally against war with Iran outside the Capitol Hill in Washington D.C., the United States, Jan. 9, 2020. (Xinhua/Liu Jie)

Signs are seen during a rally against war with Iran outside the Capitol Hill in Washington D.C., the United States, Jan. 9, 2020. (Xinhua/Liu Jie)

A rally against war with Iran is held outside the Capitol Hill in Washington D.C., the United States, Jan. 9, 2020. (Xinhua/Liu Jie)

Signs are seen during a rally against war with Iran outside the Capitol Hill in Washington D.C., the United States, Jan. 9, 2020. (Xinhua/Liu Jie)