President Barack Obama has urged Democrats of all ethnic backgrounds to vote for Hillary Clinton, warning that the fate of the United States is at stake.
"The data clearly shows that Mr. Trump's message is reaching voters and we are expanding the map", said Brad Parscale, the campaign's digital director.
Hillary Clinton is rushing to secure MI and bolster the Democratic Party's vaunted blue wall of upper Midwestern states that have backed the party's presidential nominee for two decades, sending in reinforcements as Donald Trump aims to upend the former secretary of state's path to a winning 270 electoral votes.
"This has never happened to a nominee of a major party", Clinton said.
Speaking to a union-heavy crowd in Las Vegas, Clinton urged voters to imagine what life would be like if Trump is inaugurated on the steps of the U.S. Capitol in January.
The race also appears to be tightening up in some battleground states, including Florida.
Clinton's efforts to sharpen the contrast with Trump has left her campaign shrouded in a dark, negative tone as she closes out her White House bid.
During a day-long tour of Florida that included stops in Orlando and Pensacola, Trump claimed polls showing him "way up" in the state.
"Michigan is moving to a toss up because Donald Trump is uniting the Republican base, has a strong lead among Independents, is on the verge of record support in blue collar areas such as Macomb County, and gains a higher proportion of African Americans than Republican candidates usually get in MI", said a Facebook statement by John Yob, head of Strategic National, the firm which conducted the poll.
Trump's daughter Ivanka was campaigning in New Hampshire.
The FBI's discovery of more emails tied to Hillary Clinton hasn't hurt her in the polls. "Pretend we're slightly behind. we don't want to blow this". While this latest poll showed that just 4 percent of Granite State voters were undecided, 10 percent were supporting Libertarian candidate Gary Johnson and another 3 percent said they backed Green Party candidate Jill Stein. "We gotta win. We gotta win big".
During the Republican primaries, Trump constantly bragged about his latest poll numbers.
WATCH: 'Getting out the vote' may swing some states for Clinton.
But Clinton's hopes for a landslide appear to be fading. "Democrats in Michigan, Wisconsin and Pennsylvania, if you heard it was over, if you thought those states were in the bag, don't believe it".
In Las Vegas Wednesday, Clinton took aim at Trump's feud with an American-born judge of Mexican heritage who ruled against the businessman in an ongoing legal matter. Hillary Clinton planned to travel to the Detroit area on Friday.
At the same time, a pro-Clinton super PAC - political action committee - is spending more than a million dollars on MI airwaves along with at least a million more in Colorado, another state where Mrs Clinton has enjoyed a significant polling advantage for much of the fall.
Former President Bill Clinton made an unannounced appearance in Detroit Wednesday night to meet privately with black ministers, the city's mayor and other local leaders. But Florida looked to be the linchpin to Trump's chances.
Early voting in North Carolina shows a 5 percentage point drop in ballots from black voters from 2012.
The Reuters/Ipsos daily tracking poll for October 28 to November 1 was conducted nearly entirely after FBI Director James Comey notified Congress last Friday his agency would examine newly discovered emails that might pertain to Clinton's use of a private email server while she was secretary of state.