He also claimed Democrats fear engaging him about his proposed border wall because they would lose a debate about whether, in his words, "walls work". However he would nearly certainly face immediate court challenges, with Democrats arguing that there is no real emergency on the frontier.
President Donald Trump waves as he boards Air Force One at Andrews Air Force Base.
Trump has discussed possibly declaring an emergency and redirecting funds already allocated by Congress for other purposes, possibly at the Defense Department, to his wall. The White House did not immediately respond to a request for comment.
On Thursday, House Democrats also released a detailed summary of their opening offer in the negotiations, which didn't include any money for building the wall, reported Reuters. Republicans in the Senate need at least seven Democrat votes to sign a spending measure.
A disapproval resolution on a presidential emergency declaration is rare, so exactly how the process would play out is uncertain.
Maurizio Sarri odds slashed for Chelsea sack
Sarri asked the squad why they appeared to disregard what they had worked on in training and seemed unable to execute the basics of his tactical plans.
Instead, Pelosi said funding for more ports of entry or additional border security technology was open for negotiation. "I think she's got to get on the ball, because we're going to have a wall that's being built anyway".
Construction of a border wall was one of Trump's signature 2016 campaign promises, and he repeatedly said at the time that Mexico would pay for it. The decision unilaterally to end the longest and most costly shutdown in government history was greeted with relief, but it has led to criticism from Trump's own supporters that he "caved in".
Trump is pitted between the political middle and his own base, which has embraced his demand for a border wall.
Facing a deadline for a compromise, House Republicans on the conference committee plan to travel to the border Sunday and Monday. The official would not say whether Trump would criticize Pelosi or Senate Democratic Leader Chuck Schumer, his antagonists in the shutdown fight, by name in his address. Although McConnell has warned about the perils of another shutdown or a national emergency, Trump has dangled both as possibilities.
"I'm certainly thinking about it", he said of declaring the emergency.
Asked if Trump would acknowledge the shutdown in his speech, the administration official said the president will "definitely talk about immigration and about where we are in that debate and present a path forward".