Washington (CNN) The White House says it is forging ahead with plans for President Donald Trump to deliver his State of the Union address at the Capitol next week, even as House Speaker Nancy Pelosi appears entrenched in her request for Trump to postpone the speech until the government reopens.

Over the holiday weekend, the White House asked for -- but was denied -- a walk-through by the House of Representatives' sergeant-at-arms in preparation of the speech. Still, on Tuesday a senior White House official said the administration is "moving forward" with plans for the speech at the US Capitol.

White House officials have continued working on the President's speech and been mulling other plans for its delivery in the event Trump cannot address the joint session of Congress next week.

"If the speaker withdraws the invite for 1/29, contingencies need to be planned," a senior White House official told CNN's Jim Acosta.

"She invited us. We accepted," another official said of Pelosi. "She cited security concerns. (The Department of Homeland Security) responded to those. And we are moving forward."

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