But blue-collar voters and rural America embraced his aggressive talk and stances.
Republicans are bracing for a likely loss of seats in the House of Representatives but are favored to hold on to the Senate. Maybe the GOP narrowly holds the House, but Democrats keep the Senate close.
Democrats are favoured by election forecasters to pick up the minimum of 23 House seats they need for a majority.
Heading into Election Day, Democrats were not expected to fare as well in the Senate as in the House of Representatives. In turn, Trump began trying out defensive arguments ahead of Election Day, noting that midterm losses are typical for the party in the White House, pointing out a high number of GOP retirements and stressing that he had kept his focus on the Senate.
Democrats' longshot prospects for capturing a Senate majority were pinned on expectations that their supporters, roused by revulsion toward Trump, would surge to the polls.
In the Senate, Republicans could still approve federal judges and Trump Supreme Court nominees, but if they want to get any big legislation done they're going to have to negotiate with Democrats in the House, and possibly a Speaker Nancy Pelosi. It wasn't clear what "leaks" he was referring to.
Anticipating the possibility of keeping the Senate but losing the House, aides in recent days had laid out the political reality to Trump, who could face an onslaught of Democratic-run investigations.
Investor confidence stemming from the tax cuts and Trump's other business-friendly policies so far have more than made up for ongoing worries on Wall Street that his trade conflict with China is hurting the USA economy, and that it could become worse.
Polling suggests the Republican coalition is increasingly older, whiter, more male and less likely to have a college degree. And a status-quo election would actually set up Democrats very well to take over the chamber when they have much better opportunities in 2020 and 2022.
Record diversity on the ballot may have helped drive turnout. Wexton was among the record number of women running this year.
The mid-terms will decide which party will control the two houses of Congress.
Three states could elect their first African-American governors, while several others were running LGBT candidates and Muslims.
Prince Charles reveals his fears for Prince Harry and Meghan's child
Charles , who turns 70 next week, is the longest-serving heir apparent in British history. But I always wonder what meddling is, I mean I always thought it was motivating".
Two issues more than any others were on voters' minds.
In battlegrounds where Democrats were thought to have chances to gain seats, first-term Democratic Rep. Jacky Rosen was in a close contest with Nevada Sen.
Democrats celebrated a handful of victories in their "blue wall" Midwestern states, electing or re-electing governors in Michigan, Pennsylvania, Minnesota and in Wisconsin, where Scott Walker was defeated by state education chief Tony Evers. "And especially in the House where a simple majority gives you nearly absolute power to again set the agenda and get bills across the floor". Democrats also reclaimed a handful of blue-collar districts carried by both former President Barack Obama and Trump. Others have pledged to pursue impeachment, although removal from office is unlikely so long as the GOP controls the Senate or even maintains a healthy minority.
Tripling the Democratic pain, North Dakota Senator Heidi Heitkamp crashed to defeat against Republican state lawmaker Kevin Cramer, while Missouri Democrat Claire McCaskill lost to the state's attorney general, Republican Josh Hawley.
Liz Mair, GOP strategist, said: "Tomorrow is probably going to be pretty unpleasant for Republicans.It's going to be tough for them to win the House".
Midterm turnout by young adult voters, aged 18 to 29, most recently peaked in 1982, when 31.7 percent of that age group cast a ballot, according to Center for Information and Research on Civic Learning and Engagement at Tufts University.
"It's all fragile", he said on the call.
AP VoteCast, a national survey of the electorate conducted by The Associated Press, highlighted the effect Trump was having on voters.
Over the past two decades, the highest turnout for women during a midterm election occurred in 2006, when almost 45 percent voted.
Fox News personality Sean Hannity and conservative radio host Rush Limbaugh served as "special guests" at the final rally, according to Mr Trump's campaign, although Mr Hannity insisted on Twitter he would only be "covering (the) final rally for my show". In 2016, Trump won the suburban Atlanta district by a single point. Voters scored Trump positively on the economy and for standing up "for what he believes in". It was just the second midterm election in over three decades when the party holding the White House gained seats.
Drew Hammill, an aide to Pelosi, tweeted Tuesday evening that the President called Pelosi at 11:45 p.m. ET "to extend his congratulations on winning a Democratic House Majority".
Vermont independent Sen. Bernie Sanders and Democrats Elizabeth Warren of Massachusetts, Kirsten Gillibrand of NY and Minnesota's Amy Klobuchar were easily re-elected. They will instead be forced into a new role that is primarily messaging instead of legislating.
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