FREELAND, MI – U.S. Speaker of the House Mike Johnson believes Michigan is “ground zero” in the battle for the presidency. “Michigan matters more than most, you know that,” Johnson said. “How Michigan goes, so goes the country.”

Republican Donald Trump and Democrat Kamala Harris each made three stops in Michigan, making it the single busiest day of the cycle for the state.

Trump has recently backed out of interviews with NBC News and with 60 Minutes. His staff had been in talks with The Shade Room, an online outlet with a primarily young and Black audience, but were reportedly told that Trump would not be finalizing a date for the interview because he is “exhausted.

Vice President Kamala Harris and former President Donald Trump collided Friday in Michigan, both barnstorming the state as they wage a tight battle for its potentially decisive 15 Electoral College votes.

In Michigan, Harris visited Grand Rapids, Lansing and Oakland County for three campaign stops. Trump appeared in Oakland County for a roundtable event, and then ended the evening with a rally in Detroit that included an 18-minute delay due to a microphone malfunction.

Michigan Harris voters told Politico this week they may leave the country for Canada if former President Trump wins the election in November.

Nationwide, there are more signs that Democrats continue to outpace Republicans when it comes to early voting. T argetSmart analysis published on Wednesday found that 3,845,372 registered Democrats had voted so far, compared with only 2,550,036 Republicans and 634,091 unaffiliated voters.

The presidential candidates are locked in a fierce competition to win critical battleground states and both candidates are rallying in the state of Michigan.

Vice President Kamala Harris is set to appear with singer Lizzo as the Democratic presidential nominee marks the beginning of in-person early voting in Detroit on Saturday.

Kamala Harris and Donald Trump are both seeking support from Arab American voters as they campaign in Michigan, trying to lock down support in a battleground state that could decide the presidential race.

Former President Trump’s mic cut off for almost 20 minutes while he was giving a speech at a campaign rally in Michigan. NBC News' Garrett Haake reports on the mishap from the rally, on a day when Trump and his opponent Vice President Kamala Harris held dueling events in the battleground state.