Sen. Barbara Mikulski

WASHINGTON—President Barack Obama secured a landmark foreign policy victory Wednesday as Senate Democrats amassed enough votes to ensure the Iran nuclear deal survives in Congress, despite ferocious opposition from Republicans and the government of Israel. Democratic Sen. Barbara Mikulski of Maryland became the crucial 34th vote in favor of the agreement. “No deal is perfect, especially one negotiated with the Iranian regime,” Mikulski said in a statement.

President Barack Obama has signed a one-week funding bill for the Homeland Security Department, keeping the agency open after a showdown that went right up to the brink.Obama signed the bill late Friday, just minutes before the midnight deadline.Typically, when Obama signs important legislation, he issues a statement addressing its significance.

Bordering on dysfunction, Congress passed a one-week bill late Friday night to avert a partial shutdown of the Homeland Security Department, as leaders in both political parties quelled a revolt by House conservatives furious that the measure left President Barack Obama's immigration policy intact.The final vote of a long day and night was a bipartisan 357-60 in the House, a little more than an hour after the Senate cleared the measure without so much as a roll call.That sent the legislation...