Federal prosecutors pushed back on Monday against former President Donald J. Trump’s request to postpone his election interference trial in Washington until well into 2026, asserting that his main reason for the delay — the amount of evidence his lawyers have to sort through — was vastly overstated.

Mr. Trump’s lawyers, in an extremely aggressive move last week, asked Judge Tanya S. Chutkan, who is overseeing the case, to put the trial off until at least April 2026. That schedule would call for a jury to be seated nearly a year and a half after the 2024 election and almost three years after the charges against Mr. Trump were originally filed.

The lawyers said they needed so much time because the amount of discovery evidence they expect to receive from the government was enormous — as much as 8.5 terabytes of materials, they told Judge Chutkan, totaling over 11.5 million pages.

As part of their filing to the judge, the lawyers included a graph that purported to show how a stack of 11.5 million pages would result in a “tower of paper stretching nearly 5,000 feet into the sky.” That, the lawyers pointed out, was “taller than the Washington Monument, stacked on top of itself eight times, with nearly a million pages to spare.”