WASHINGTON (AP) — The White House argued Sunday that Speaker Nancy Pelosi has put herself in an untenable position by stalling House-passed articles of impeachment against President Donald Trump in hopes of shaping the upcoming Senate trial.

The House voted Wednesday to impeach Trump, who became only the third president in U.S. history to be formally charged with "high crimes and misdemeanors." Pelosi has declined to send the articles of impeachment to the Senate until Republicans provide details on witnesses and testimony, forestalling a trial that is likely to result in Trump's acquittal on...