For the sixth time, the Senate on Thursday failed to advance an Iran War Powers Resolution by a vote of 50-47.

But for the first time, Republican Sen. Susan Collins, Maine, voted with Democrats on Thursday in favor of advancing the legislation. Similar to the last five attempts, Democrat Sen. John Fetterman voted against advancing the resolution and Republican Sen. Rand Paul voted in favor.

"No more dodging, no more hiding, no more shirking," Senate Minority Leader Chuck Schumer said on the Senate floor. "Republicans need to help us end this illegal, costly war. They should have done it long ago. The most important vote a senator can take is on matters of war and peace."

Republicans, most of whom have been reluctant to break with Trump, have pointed to the 30-day extension under the War Powers Resolution as a way to move the goalpost on taking a vote on the administration’s operations.

Friday will mark the 60-day statutory deadline to conclude the conflict. A White House official said the Trump administration is in "active conversations" with lawmakers about requesting Congressional authorization for the war in Iran.

-ABC News’ Lalee Ibssa

Israeli forces have killed at least 2,586 people and wounded another 8,020 in Lebanon since March 2, according to the latest tally from the Lebanese Ministry of Public Health.

At least 184 children are among the dead and at least 735 children were injured, the Lebanese Ministry of Public Health said.

The Trump administration is seeking the participation of other countries to form an international coalition to help re-open the Strait of Hormuz.

Dubbed the "Maritime Freedom Construct," the coalition would help with coordinating diplomatic efforts, including aligning on sanctions and information sharing to help with safe transit through the waterway, according to a U.S. official.

A cable sent this week by the State Department to posts around the world called on diplomats to announce the formation of the new coalition and "ask for partner participation" by Friday.

"The MFC’s efforts will enhance maritime domain awareness and support the safe passage of commercial operators and their crews," a State Department official said.

The Wall Street Journal first reported on the cable.

Notably, the United Kingdom and France have already launched a multilateral effort involving at least 30 nations toward securing the strait that could eventually involve deploying military assets if a peace deal is reached. During a Pentagon press briefing last week, Defense Secretary Pete Hegseth dismissed the U.K. and French effort as “silly."

-ABC News’ Mariam Khan

The Trump administration is in “active conversations” with lawmakers about requesting Congressional authorization for the war in Iran, according to a White House official.

Friday will mark the 60-day statutory deadline to conclude the conflict, according to the War Powers Resolution of 1973.

After the U.S. and Israel launched joint attacks on Iran on Feb. 28, President Donald Trump on March 2 formally submitted to Congress a war powers notification against the Iranian regime. Congress has not yet voted to authorize the war.

Most Democratic members of Congress and several Republicans have long objected to Trump’s military action in Iran, stating the administration has not been forthcoming with lawmakers or the American public about their objectives. These leaders have also tried to curtail the military action by forcing several War Powers Resolution debates and votes.

-ABC News’ Isabella Murray