Trump's show of support for Pelosi is not entirely out of character.
Aides set up televisions in the White House residence for Trump, first lady Melania Trump and their guests to watch election results come in, with the sets tuned to different cable news channels.
Trump, 72, had hardened his rhetoric in recent weeks on issues that appealed to his conservative core supporters.
That muted some of the opposition to him and the Democratic Party's ambivalence towards illegal immigration as a caravan of several thousands of Central Americans marching under the flags Guatemala and Honduras marched towards the United States roused Trump's base.
As for the House, we'll hear from his surrogates, at least, about how hard it is to run against history; presidents' parties always lose House seats in midterm races after all.
More women ran in congressional primaries this year than ever before, mostly as Democrats.
Financial markets often favor Washington gridlock because it preserves the status quo and reduces uncertainty, even though many in the market this time around had been hoping for a continuation of the Republican agenda.
"Those that worked with me. did very well", the president tweeted. His take-no-prisoners approach troubled many Republicans seeking to appeal to moderate voters in suburban House districts, but Trump prioritized base voters in the deep-red states that could determine the fate of the Senate.
Another potential headache for the president is the possibility that the Democrats might begin impeachment proceedings against him - though he couldn't actually be removed from office with Republicans still in control of the Senate. "As for the market impact, a split Congress has historically been bullish for equities and we expect to see the same pattern again", said Torsten Slok, Chief International Economist of Deutsche Bank. "I think my positions are going to be what the people in this room come up with", he said then.
Democrats could try to block major arms sales to Saudi Arabia and curtail US support for Saudi Arabia's war in Yemen, which the prince launched as defense minister in 2015.
In the House, 71 incumbent women were running for re-election, 46 were running for open seats and 120 were challenging sitting House members, according to the Center for American Women and Politics at Rutgers University.
Attorneys General Call For Whitaker Recusal From Mueller Investigation
Whitaker did, however, believe that Sessions had no choice but to recuse himself from the matter, the person said. Officials there have said Whitaker will follow the regular procedure in handling any ethics issues that arise.
In a sense, the Senate map offered Republicans a similar kind of structural advantage: There were 35 seats on the ballot around the country, and only nine of them belonged to Republicans.
The Republicans' control of the Senate is arguably more significant, says the BBC's Aleem Maqbool in Washington, because Mr Trump focused his campaigning on Senate races, and candidates he backed clearly benefited.
Indeed, Representative Jerrold Nadler of NY, likely to become House Judiciary Chair in the new Congress, has suggested he would even use his new subpoena power to initiate an impeachment investigation into Supreme Court Justice Brett Kavanaugh, recently confirmed after a nasty Senate battle over allegations of sexual misconduct when he was a teenager. Several of those candidates won their races Tuesday night, while other contests remained too close to call. Russian Federation has denied interfering in the election and Trump has denied any collusion between his campaign and Moscow.
Turnout broke records for midterm elections in Midwestern battlegrounds such as Wisconsin and Iowa, though with conflicting results.
Now that they have taken control of the House from the Republicans, Democratic leaders of many committees will have subpoena powers enabling them to obtain documents, email and testimony.
Republicans netted three Senate seats on Tuesday, with Arizona and Montana still yet to be called.
The GOP "had a very good day" Tuesday despite the House loss, McConnell said.
The Democrats elected are also younger, more racially diverse and include more women.
Republican businessman Mike Braun also beat the Democratic incumbent Joe Donnelly in the battleground state of in. where Trump won by 20 percentage points back in 2016.
But they missed in Florida, where Andrew Gillum conceded a race he narrowly lost, and OH, where first-time candidate Richard Cordray fell short against veteran Mike DeWine.
In Colorado, Democrat Jared Polis became the first openly gay man to be elected governor of a US state. While both claimed victory that night, the Senate race appeared poised for a recount.