Also campaign in Michigan on Thursday -- Republican Vice Presidential nominee Mike Pence and former Presidential candidate Ted Cruz.
This will be Senator Cruz's first day officially campaigning for Donald Trump.
Cruz was a bitter rival to Trump during the primaries, but he decided to endorse Trump in late September.
Pence and Cruz will speak at a rally at the Air Zoo Aerospace and Science Museum in Portage.
The rally starts at 3:30 p.m. Doors open at 1:30 p.m.