Buckle up: Attorney General William Barr's summary of the Robert Mueller report on the Russia investigation is "just the beginning" of a longer fight.

Barr said Mueller concluded Trump's campaign did not illegally coordinate with Russia in the 2016 election and couldn't form a conclusion on obstruction. Democrats have focused on lack of exoneration on the latter charge, the other probes into Trump's finances from the Southern District of New York, and even Barr's letter being an unreliable narration of what Mueller discovered.

"I don't think it's done," Rep. Steve Cohen (D., Tenn.) said on CNN.

"This is just the beginning," Rep. Madeleine Dean (D., Penn.) said on CNN.

"There are a lot of open questions," Rep. Adam Schiff (D., Calif.) told reporters.

"This is far from over," Rep. Jackie Speier (D., Calif.) said on MSNBC.

"This is just the beginning," Rep. Eric Swalwell (D., Calif.) said on ABC.

"It is certainly nowhere near the end," Rep. Pramila Jayapal (D., Wash.) told MSNBC.

"I think we're really at the beginning, maybe the middle," former Attorney General Eric Holder said.

Media outlets have repeated the "just the beginning" talking point as well; Dana Bash even teased a State of the Union episode on CNN by asking, "Is this just the beginning of the beginning?"

"This isn't something's over, and let's reflect on what just happened," MSNBC's Rachel Maddow said to Lawrence O'Donnell.