How lawmakers are prepping for Mueller testimony

Plus, President Donald Trump and Congress agreed to a budget deal that raises domestic and military spending but does little to address the growing deficit.
1:48 | 07/23/19

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Transcript for How lawmakers are prepping for Mueller testimony
Let's bring in our correspondent Mary Bruce for more and how congress is preparing. Mary, both sides taking this seriously. Reporter: George, Democrats and Republicans are spending hours preparing for this behind closed doors. Democrats are potentially holding their own mock hearing with a staff member sitting this to play Mueller but with Mueller, George, promising to stick to the report, both sides know they're not likely to get any bombshells here so their strategy instead is to simply try to shine a light on the findings. Democrats want to show viewers at home who may not have read the full 448-page report, they want them to hear for themselves what Democrats believe is the president's misconduct while Republicans are eager to shine a light on the areas of report that they feel clear the president but as you mentioned Mueller is very experienced at this. His 89th time testifying on the hill. He is known for very short often one-word responses. The challenge for lawmakers is to draw out the answers they're looking for. We will see more of that tomorrow. Meantime, Mary on another front congress and the white house seem to -- at least the congressional leadership struck a deal with the white house that would basically set the spending limits for the rest of president trump's first term. Reporter: Yeah, George, this was getting close to the wire up here but the president and congressional leaders have reached this sweeping two-year budget deal that will raise the debt ceiling long enough to postpone any new budget showdown until after the presidential election. This took weeks of negotiating between the house speaker Nancy Pelosi and the treasury secretary, in fact, speaker Pelosi was spotted on an airplane still on her cell phone hammering out the fine print. The final deal here though would raise military and domestic spending by $320 billion but it does little to address the ballooning deficit. The president, though, says this is a real compromise and congress is expected to act on this here in the coming days. Thanks very much. Tomorrow morning I'll anchor our live coverage of the testimony would our team at 8:30 eastern.

This transcript has been automatically generated and may not be 100% accurate.

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