Why Rep. Al Green left his hospital bed to tank the Mayorkas impeachment

Democratic Rep. Al Green of Texas was in a hospital bed recovering from intestinal surgery on Tuesday as the Republican-led House was about to vote on impeaching Homeland Security Secretary Alejandro Mayorkas. 

So, it came as a surprise to his colleagues when he showed up at the last minute on the House floor Tuesday night in what appeared to be his hospital garb.

In a conversation with CBS News, Green said that once he learned the impeachment vote was happening, he spoke with his doctors to obtain clearance to go to the Capitol, with medical staff accompanying him. Ultimately, the vote was 214 in favor of impeachment and 216 against, an outcome that was made possible by Green's vote. Three Republicans had voted "no" before Green's arrival at the Capitol, and the tally stood at 215-214. Green cast the tying vote, which defeated the impeachment resolution.