The Senate on Tuesday voted to block U.S. military action in Iran for the first time as the war approaches its fourth month.

The war powers resolution passed by a vote of 50–48. Sen. John Fetterman, again, was the lone Democrat to vote in the negative.

Pennsylvania Republican Sen. Dave McCormick, who was in his home state for a visit by President Trump to a Mack truck plant in the Lehigh Valley, was absent.

Four Republicans — Lisa Murkowski of Alaska, Susan Collins of Maine, Rand Paul of Kentucky and Bill Cassidy of Louisiana — supported the measure.