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 You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more ||||| NEW YORK (Reuters) - A majority of Americans say Democrat Hillary Clinton won Monday night’s presidential debate, but her performance doesn’t appear to have immediately boosted her support among likely voters, according to a Reuters/Ipsos national tracking poll released on Wednesday. 
 
 The online poll, which gathered responses from more than 2,000 people on Tuesday, found 56 percent of American adults felt that Clinton did a better job than Trump in the first of their three televised debates, compared with 26 percent who felt that Trump did better. 
 
 Of those who thought Clinton emerged the victor, 85 percent were Democrats and 22 percent were Republicans. 
 
 U.S. presidential debates have historically been seen as a crucial test of candidates’ poise and policies. Monday’s was watched by a record 84 million viewers and was billed as a rare prime-time opportunity for two unpopular candidates to convince millions of undecided voters to back them. 
 
 Afterward, both candidates claimed victory. 
 
 ““Every single online poll had me winning,” Trump said at a campaign stop in Council Bluffs, Iowa on Wednesday. “You sit back and you hear how well she did in the debate. I don’t think she did well at all.” 
 
 Clinton campaign spokesman Jesse Ferguson said the Democrat clearly won the debate as Trump “was unprepared, became unhinged and was incoherent throughout.” 
 
 Among those who are expected to take part in the Nov. 8 general election, 34 percent said they felt that the debate changed their view of Clinton in a positive way, compared with 19 percent who said the same of Trump. 
 
 DELAYED REACTION 
 
 Some 31 percent of likely voters said the debate improved Clinton’s chances of winning the White House, while 16 percent said the debate benefited Trump. 
 
 Even so, Clinton’s performance seemed to have little impact on her support among America’s likely voters. The poll showed 42 percent supported Clinton while 38 percent supported Trump. Over the past few weeks Clinton has maintained a lead of between 4 and 6 points over Trump. 
 
 Narrowing the focus to likely voters who watched the debate, Clinton led Trump 44 percent to 39 percent. 
 
 One possible reason for the lack of movement in her support is that it usually takes several days to measure the full impact of a single event, like a debate, said Donald Green, a political scientist at Columbia University. 
 
 The Reuters/Ipsos poll is conducted every day in English in all 50 states. Monday’s sample of 2,036 American adults included 1,336 people who were considered to be likely voters from their voting record, registration status and stated intention to vote in the election. Among those likely voters, 1,026 said they watched some portion of the debate on live TV, online or in media clips that were circulated after the debate. 
 
 Republican presidential nominee Donald Trump speaks as Democratic U.S. presidential nominee Hillary Clinton listens during their first presidential debate at Hofstra University in Hempstead, New York, September 26, 2016. REUTERS/Pool 
 
 The poll has a credibility interval, a measure of accuracy, of 3 percentage points for the entire sample and the sample of likely voters. It has a credibility interval of 4 percentage points for the likely voters who watched the debate. 
 
 National opinion polls have differed this year in how they measure support for Clinton and Trump. Some polls, like Reuters/Ipsos, try to include only likely voters, while others include all registered voters. The Reuters/Ipsos tracking poll gathers responses every day and reports results twice a week, so it often detects trends in sentiment before most other polls. 
 
 Polling aggregators, which calculate averages of major polls, have shown that Clinton’s lead over Trump has been shrinking this month to about 2 percentage points.
– Donald Trump was pretty pleased with his performance against Hillary Clinton at Monday's debate, even though scientific polls—not the easily manipulated online polls that Trump is citing—show most Americans pick Clinton as the clear victor. Even some of his own campaign advisers don't feel he was on point enough during the head-to-head, though they're framing it as "missed opportunities" rather than total failure. And so the strategy for Oct. 9's debate is reportedly getting an overhaul, with more role-playing practice, facts study, and even rehearsing how to move around the stage for the town-hall-style event, per the New York Times. What these advisers, who spoke anonymously to the paper, are worried about, however, is whether Trump will agree to this prep. Complicating things: Some say he actually was drilled on how to combat Clinton on certain issues and that he just chose not to. Others point the finger at Trump's extremely busy schedule in the days before the debate and too many people (up to a dozen, some with not much political acumen) giving him conflicting suggestions. Sources say his debate training was "unconventional," with Trump unable to concentrate during more traditional sessions and preferring to simply dish with advisers rather than have mock debates. Trump himself told Fox News he found it hard to segue into some of those challenges against Clinton on the debate stage, such as the subject of Benghazi. Trump's pulling back—he stopped attacking Clinton and even grew "subdued" as the debate proceeded—has got to change the next time around, frustrated aides say. Instead, he has to set Clinton's vulnerabilities in his sights and stick to his plan for the whole night. "It clearly looked like he ran out of gas after 30 minutes [in the New York debate], and that came through loud and clear," a senior political strategist tells the Times.