Senate Minority Leader Harry Reid (D-NV) went to the Senate floor Thursday morning to declare that when history looks back on the current Congress, it will “note the Republicans in Congress treated President Obama with unprecedented disrespect.”

“President Obama is the first President to be denied a hearing on his budget. He’s the first President to be denied a hearing on a Supreme Court nominee. President Obama is the first President asked to show his birth certificate,” Reid said on the floor. “President Obama is the first President to face over 500 filibusters here in the Senate. In this Republican Senate, President Obama will receive fewer nominees confirmed than any President in many many decades. Republicans have not done their basic work of government.”

The comments were part of a string of political speeches Reid has given on the floor in recent months, as the general election has approached and Congress’ productivity has come to a screeching halt. During his speech, Reid blamed Republican obstructionism and political games for laying the groundwork for Donald Trump as the GOP nominee.

“They would have us believe that Trump just fell out of the sky and somehow mysteriously became the nominee of the party, but that’s not the way it is,” Reid said. “Everything that he’s said, stood for, done in this bizarre campaign that he’s run has come, filtered up, from what’s going on in the Republican Senate.”

Trump, Reid said, “is the monster Republicans built.”

“He is their Frankenstein monster. They own him,” he said.