Nancy Pelosi: People have a 'spring in their step' after Donald Trump impeached
But the speaker insisted the Senate must provide more details about the expected trial in that chamber before she agrees to send the House charges over.
Ms Pelosi's unexpected procedural delay - looking for leverage in trial arrangements - was getting a sour response from Senate Majority Leader Mitch McConnell and from Mr Trump himself.
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Hide AdMr McConnell said Democrats are "too afraid" to send the charges to the Senate, where Mr Trump would be expected to be acquitted by the Republican majority.
Mr Trump tweeted, "Now the Do Nothing Party want to Do Nothing with the Articles."