President Donald Trump took a victory lap on Capitol Hill Tuesday, emboldened by the end of the government's Russia probe even as Democrats demanded the release of special counsel Robert Mueller's full report and intensified their focus on policy issues.

The Affordable Care Act took center stage for the Democrats after a season of congressional business that's been mostly about Trump, including the investigations and, earlier, the government shutdown. Radiating a sense of vindication, Trump walked into the Senate flanked by Republican leaders.

'It could not have been better,' Trump said of the summary of the Mueller report by Attorney General William Barr. But he, too, was quick to turn to policy and the future: 'The Republican Party will soon be known as the party of health care. You watch!'

House Speaker Nancy Pelosi and other Democratic leaders also pointed to health care. She urged rank-and-file Democrats behind closed doors to 'be calm' and focus on policy promises that helped propel them to the House majority last fall. That means advocating for a robust policy agenda to improve health care and pay while conducting the oversight of the Trump administration many voters want.

'Let's just get the goods,' Pelosi said, according to an aide in the room granted anonymity to discuss the private caucus meeting.

The advice was reinforced by former President Barack Obama, who counselled freshman Democrats at a reception Monday night.

Obama advised the newly elected lawmakers to listen to constituents — and also identify issues they feel so strongly about that they'd be willing to lose their House seats in fights over them, according to multiple people at the private party.

The former president recalled that as a state legislator he gave priority to his constituents, which helped keep his popularity high enough in Illinois that he could advocate for bold policy ideas.

The challenges for Democrats come as Trump has made clear he's fired up to go on offence against those who propelled the narrative that he colluded with Russia to win the 2016 election.

Even before he arrived in the Senate, Trump tweeted his message about health care. When he walked into a cloistered parlour to lunch with Republicans, they applauded him.

Ahead of the Senate meeting, Trump was in a combative mood. He tweeted against the 'mainstream media' as 'corrupt and FAKE' for pushing the 'Russian Collusion Delusion,' previewing attacks on other opponents to come.

He has promised to go after those who did 'evil' things, perpetuating the collusion narrative.

Attorney General William Barr's summary said the special counsel's probe didn't find collusion between the Trump campaign and the Russian government to tilt the 2016 presidential election. Mueller did not determine whether Trump obstructed justice in the investigation, but Barr and his team said no prosecution was warranted.

Trump allies, including Senator Lindsey Graham, have encouraged him to use the political capital he's now gained to accomplish policy goals. 'Let's go on about governing the country,' said Graham, who spent the weekend with the president in Florida.

Trump's trip to Capitol Hill comes right after his administration said late Monday it would not defend the Affordable Care Act in a court challenge — and as the House Democrats, led by Pelosi, were unveiling a sweeping measure to rescue the program, also known as 'Obamacare.'

The chairman of the intelligence committee, Representative Adam Schiff, stood up at the closed-door meeting and told his colleagues the most important thing now is the work on the ACA, according to those in the room.

Other leaders backed up the focus on policy.

'I believe that the Mueller report has been done. That's a chapter that's closed,' House Democratic Whip James Clyburn said on CNN. Health care, he said, 'is the number one thing on people's minds.'

On the Trump-Russia track, Democrats pressed the Justice Department to provide the full report from Mueller, saying Barr's four-page synopsis was insufficient.

'I haven't seen the Mueller report. I've seen the Barr report. And I'm not going to base anything on the Barr report,' said Representative Jamie Raskin.

'The president is saying he's been completely and totally exonerated by the report. The one sentence we've seen from the report says this is not an exoneration of the president.'

Many Democrats say Barr is conflicted because of his views — expressed in a memo to the administration before becoming attorney general — that the president cannot be charged with obstruction since he oversees the Justice Department.

'You can't move forward on a four-page memo,' said Representative Karen Bass. 'It's hard for me to accept that as an objective opinion.'

Impeachment talk, however, was subdued. One Democrat, Representative Rashida Tlaib of Michigan, told her colleagues at the morning meeting about her resolution to investigate Trump further, but those familiar with her comments said it notably did not include actual articles of impeachment.

The challenges for Democrats ahead are clear, as they try to balance conducting oversight of the president without seeming to overreach, all while Trump goes on the attack for the years they spent accusing him of collusion.

'The thing about the president — and it's his strength — is he's Johnny one-note which is collision, collusion, collusion,' Bass said. 'From his point of view, it's all over. But for us it's about collusion, it's about conspiracy, it's about corruption, it's about abuse of power and it's about obstructing justice.'

She said, 'We have a long way to go.'

Trump said the release of Mueller's full report 'wouldn't bother me at all,' and Democrats quickly put that statement to the test.

Six House Democratic committee chairmen wrote to Barr and asked to have Mueller's full report by April 2. If not, they have suggested subpoenas could be issued.