The Houston Democrat is recovering from abdominal surgery. Democrats did not expect him to attend the vote, but his surprise appearance sank the impeachment vote.

All of Texas’ House Republicans voted to impeach Homeland Security Secretary Alejandro Mayorkas for failing to secure the southern border, but the House fell short of passing the historic resolution on Tuesday after Rep. Al Green, D-Houston, rushed to the House from the hospital where he was recovering from abdominal surgery to vote no.

The impeachment failed on a 216-214 vote. Four Republicans joined all Democrats in voting against the impeachment. The House has not impeached a member of a president’s cabinet in nearly 150 years.

The vote was extremely close, with the outcome unknown until the end of the vote. U.S. Rep. Mike Gallagher, a Wisconsin Republican who chairs the House select committee on China, voted against the resolution. Numerous Republicans, including Texan Reps. Michael McCaul and Jodey Arrington were seen circling around Gallagher as he held out on his vote.

U.S. Reps. Ken Buck of Colorado and Tom McClintock of California also voted against impeachment. U.S. Rep. Blake Moore, R-Utah, ended up changing his vote to a no at the last minute, tanking the vote but allowing Republicans to bring it up again in the future.

House Republicans were counting on Green to be absent. But he arrived just in time in a wheelchair and scrubs to give Democrats enough votes to kill the impeachment.