That result lines up with a Quinnipiac poll released earlier Wednesday morning, which showed a 41-41 tie among majority-party presidential candidates in the Buckeye State.
The joint appearance in Portsmouth, New Hampshire - their first - was the culmination of weeks of talks between the two campaigns aimed at unifying the party to most effectively take on Republican opponent Trump in November.
The polls have bucked the Clinton campaign into overdrive, with a resolved effort to continue working hard in the battleground states. And Clinton mentioned Sandra Bland, a former Naperville woman who died a year ago Wednesday in a Texas jail cell after she was pulled over in a controversial arrest by a state trooper.
- Independent voters, who supported Clinton over Trump 44 to 35 percent last month have shifted, and now back Trump 43 to 30 percent.
They are tied at 41% each in OH, and Trump leads by 2 points, 43% to 41%, in Pennsylvania.
FBI Director James Comey said last week Clinton was "extremely careless" in the handling of classified information but the investigation found no evidence she or her colleagues meant to violate laws.
Clinton's lead didn't change much in a four-way matchup that included Libertarian Gary Johnson and the Green Party's Jill Stein.
"Donald Trump enters the Republican Convention on a small roll in the three most important swing states in the country", said Peter Brown, assistant director of the Quinnipiac University poll.
The GOP Convention starts next week and having Donald Trump narrowing the gap will decrease the likelihood of any rouge delegates finding a way to stop Trump. She also led with Hispanic, black and Asian voters, 66% to 15%, and white voters, 44% to 38%. In Ohio, Trump gets 37 percent of support compared to Clinton's 36 percent, with 7 percent for Johnson and 6 percent for Stein.
"The bad news for her is the contest has gotten closer in all of these states, and the issue does not seem to be going away anytime soon", he said.
Trump's family, including Ivanka Trump and her husband Jared Kushner, also met privately with Christie Tuesday.
Clinton's argument throughout the speech - delivered with the help of a teleprompter - was that Trump is not only fueling divisions in the country but was doing so to power his campaign. She says Trump is unfit for office.
Trump's lead in the head-to-head matchup is within the poll's 3.1 percentage-point margin of error.