The House of Representatives voted 217 to 216 on Thursday afternoon to discharge the War Powers Resolution challenging the Iran naval blockade from the Foreign Affairs Committee, in a procedural vote that overrode Speaker Mike Johnson's stated opposition and that produced the closest contested House vote of the second Trump administration. The discharge motion, brought by Representative Thomas Massie of Kentucky under the standard procedure for War Powers resolutions, required 218 signatures on a petition that had been collecting since the original April 30 letter was published. The final signature was added Thursday morning by Representative Anna Paulina Luna of Florida, whose decision to sign closed a week of intense lobbying inside the Republican caucus.

The Republican signatories of the discharge petition were the 31 original signers of the April 30 letter plus six additional Republicans who joined over the past ten days. The full Republican list, as confirmed by the House clerk Thursday afternoon, includes Representatives Thomas Massie of Kentucky, Warren Davidson of Ohio, Andy Biggs of Arizona, Chip Roy of Texas, Matt Gaetz of Florida, Eli Crane of Arizona, Bob Good of Virginia, Anna Paulina Luna of Florida, Tim Burchett of Tennessee, Andy Ogles of Tennessee, Cory Mills of Florida, and 26 others. The complete Democratic caucus, with three absences for medical reasons, voted for discharge.

The Floor Sequence

The discharge motion was filed at 11:30 a.m. Thursday morning following Luna's signature. The motion was placed on the House calendar under expedited procedures and was called to a recorded vote at 2:00 p.m. The vote ran for 28 minutes, longer than the standard 15-minute window, as the speaker's office attempted last-minute lobbying of three Republican members who had signed the petition but were not yet committed to voting for the discharge motion itself. Representatives Crane, Good, and Mills were the principal targets of that effort. All three voted in favor of discharge despite reported phone calls from the speaker's office and from the White House Office of Legislative Affairs during the voting window.

The narrowness of the margin reflected the speaker's last-ditch lobbying, which produced no defections from the petition signers but also did not lose any Republican votes that the leadership had counted as solid against discharge. Representative Marjorie Taylor Greene of Georgia, who had publicly criticized the blockade in early May but who had declined to sign the discharge petition, voted against discharge. Representative Lauren Boebert of Colorado, who had similarly criticized the operation, also voted against discharge. The leadership's hold on those two members, both of whom had been mentioned in earlier reporting as potential discharge signers, was the principal procedural achievement of the speaker's Thursday morning operation.

What Comes Next

The discharge of the resolution from committee places it on the House calendar for a floor vote on the underlying resolution within the next ten legislative days. Under the standard scheduling that the leadership has applied to similar resolutions in past Congresses, the floor vote would occur on Tuesday, May 19, with debate beginning Monday afternoon. The substantive vote on the resolution itself will require 218 votes for passage, and the discharge vote tally is not a reliable indicator of the substantive vote because some members will vote for discharge as a procedural matter while voting against the substantive resolution on its merits.

The current head count, as estimated by the Foreign Affairs Committee minority staff and confirmed by separate counts from the offices of Representatives Massie, Roy, and Kaine on the Senate side, has approximately 210 confirmed votes for the substantive resolution. The 197 Democrats are essentially unanimous in support. Approximately 13 Republicans have indicated firm support for the substantive resolution, with another 18 to 22 Republicans uncertain. The eight to ten additional votes necessary for passage will be the principal contest of the coming five days.

The Administration Response

The White House issued a statement at 3:00 p.m. Thursday characterizing the discharge vote as "regrettable and ill-timed" and indicating that the administration "remains committed to the diplomatic effort in Muscat that this resolution would compromise." The statement was issued under the name of Press Secretary Karoline Leavitt rather than under the president's name, which is the form White House statements take when the substantive position is the administration's but the political ownership is being managed at one remove from the principal. Press Secretary Leavitt's briefing later Thursday afternoon focused on the substantive elements of the Muscat track and declined repeated questions about whether the president would veto the resolution if it passed both chambers.

Speaker Johnson's office issued a separate statement at 4:30 p.m. characterizing the discharge as "the consequence of a small group of members substituting their judgment for the judgment of the conference" and indicating that "the conference will reconvene tomorrow to discuss the procedural and substantive consequences." Representative Massie, in a Thursday evening C-SPAN interview, said that "the speaker's authority extends to the floor schedule the conference accepts, and Thursday's vote was the conference rejecting the schedule the speaker proposed." The intra-caucus political consequences of the vote, including potential leadership-related responses against the Republican signatories, will be the principal Republican story of the coming weekend.

The Senate Variable

The Senate companion resolution, filed by Senator Rand Paul on May 9, is on a procedural track that will produce a Senate floor vote by June 3 regardless of the House outcome. A House vote that passes the resolution on Tuesday, May 19, would increase the political pressure on Senate Republicans to vote yes. A House vote that fails would relieve that pressure. The discharge vote on Thursday made the House vote real. The question of how the House vote turns out, and what the consequences are for the Senate timeline and for the underlying Muscat negotiations, will dominate Washington for the coming week.