WASHINGTON — To prepare for next week’s high-stakes hearing with Robert Mueller, some Democrats are watching old video of his testimony on other matters.

Others are closely re-reading the former special counsel’s 448-page report of Russia’s election meddling and the Trump campaign. And almost all are worrying about how they’ll make the most of the limited time for questioning.

Mueller has said he won’t answer questions beyond what is in his report when he comes to Congress on July 17. He is expected to testify before the House’s judiciary and intelligence committees for two hours each. Democrats will be trying to spotlight what they say are the report’s most damaging findings about President Donald Trump.

A Rhode Island congressman, David Cicilline, says Democrats have to be “very strategic about the questions.”