McConnell eschewed further attempts to get him to respond to heated presidential rhetoric, refusing to call the migrant caravan - still hundreds of miles from the southern US border - a "crisis", as Trump did in high profile campaign rallies created to turn out the GOP base.
Mr Trump's remarks on party dynamics came after Senate majority leader Mitch McConnell said he had spoken with House Democratic leader Nancy Pelosi about how they might "find a way forward" in a divided Congress next year.
A Democratic House isn't going to put the USA back in the Iranian nuclear accord or the Paris climate agreement, and is unlikely to challenge Trump's protectionist line on trade.
"I think that I am better at that game then they are actually", he said. When they asked how the Trump Organisation arrived at the US$151,470 in profits it paid back to the Treasury for foreign stays at his hotels, they got silence.
Early in the press conference, Mr. Trump called CNN's Jim Acosta a "rude, awful person" after the reporter berated the president and refused to give up the microphone after wrestling it away from a young female White House aide. And if there's a total impasse, Trump said, "government comes to a halt and I would blame them".
Democratic leaders plan to satisfy those demands by using their newfound majority to push through long-stalled initiatives that they say have broad support within the electorate.
It was "such a very Big Win", he tweeted, "and all under the pressure of a Nasty and Hostile Media!" "That is possible", he told a news conference at the White House.
In ill-tempered exchanges, he called a CNN correspondent "a rude, awful person" and told an NBC reporter: "I'm not a big fan of yours either". China says it handles all trademark applications equally, but House committees could probe whether Beijing can exploit the Trump family's substantial intellectual property holdings in China to its political or diplomatic advantage. "I'm not sure that I should be happy or sad but I feel just fine about it".
The Democrats gained more than the 23 seats they needed for a majority in the 435-seat House of Representatives. Thus far, 82 of the 94 women elected to the House this year, as well as nine of the 12 elected to the Senate, are Democrats.
Major League Baseball star Bryce Harper rejects $300M offer from Nationals
It's not a surprise that the Nationals would try to make sure Harper didn't hit free agency, but this is still pretty interesting. But no position player has ever earned an average annual value of more than $27.5 million (Alex Rodriguez and Yoenis Cespedes).
With the Democrats in the majority they will have the power to launch investigations and subpoena records, including possibly Trump's tax filings and private business dealings.
While Trump retains broad power over national security and USA foreign policy, the midterm election result exposes him to congressional investigations that could reverberate beyond American borders. After almost 18 months, Mueller has not brought any indictments related to collusion with Russian Federation, the central theme of his investigation. The two houses of Congress write the laws, and the president enforces them.
"I think we are excited, but we also feel there is a major responsibility to deliver on the promises we made", Libby said.
Pelosi, who is likely to return as House speaker despite opposition from some centrist Democrats, promised that the party will serve as a counterweight - but also work with Trump.
The Democratic sweep should end an era of highly charged partisan discord that was dominated by outgoing Republican Gov. Paul LePage and his prolific use of the veto.
Almost 40 percent of voters cast their ballots to express opposition to the president, according to AP VoteCast, a national survey of the electorate, while about 25 percent said they voted to express support for Trump. "The fact is we'd like to work together".
Mirroring their strong numerical gains in the nation's governorships, Democrats on Election Night seized control of seven legislative chambers.
"We are going to have to ruthlessly prioritise because there is so much that has gone wrong", Democrat Adam Schiff, who is expected to become chairman of the House Intelligence Committee, said ahead of the election.
Internal Revenue Service law allows House and Senate tax-writing committees to request federal returns, and the ranking Ways and Means Democrat, Rep. Richard Neal of MA, has signaled publicly he would ask for them - a move the White House might fight.