House Speaker Nancy Pelosi told President Trump Wednesday that she won't let him deliver his State of the Union address on Jan. 29 unless the government shutdown ends.

"I am writing to inform you that the House of Representatives will not consider a concurrent resolution authorizing the President's State of the Union address in the House Chamber until government has opened," she wrote in a letter to Trump.

The letter effectively rescinds the invitation she sent to Trump on January 3rd, in which she asked him to deliver his address on January 29. Pelosi, D-Calif., explained that when she wrote that first letter, "there was no thought that the government would still be shut down."

Her new letter was a response to one Trump wrote just two hours earlier. Trump told Pelosi in that letter that he was told by the Secret Service that agents can secure the event without any problems, despite the shutdown, and that he intended to deliver the address as originally scheduled.

“I look forward to seeing you on the evening on January 29th in the Chamber of the House of Representatives,” Trump wrote. “It would be so very sad for our Country if the State of the Union were not delivered on time, on schedule, and very importantly, on location!”

Upon hearing about Pelosi's response, Trump said in the White House, "I'm not surprised. It's really a shame what's happening with the Democrats. They've become radicalized."

Pelosi's letter raises the question of whether Trump will try to deliver his speech somewhere else. But the White House hasn't made clear what will happen if there's no deal to end the shutdown by Jan. 29.

House Minority Leader Kevin McCarthy, R-Calif., told reporters Pelosi should allow Trump to deliver the address on the 29th in the House chamber as planned.

“I think the president should come and give a State of the Union,“ McCarthy said. "Now it’s more important than ever for the American public to hear, with everybody in the chamber. it's a critical time he should come here and give the state of the union. He shouldn’t go anywhere else.”

[Opinion: Trump can show up to deliver the State of the Union, but Pelosi could shut off the lights and keep out cameras]

