Internal polls reported by both the Meijer campaign and the Scholten campaign in Michigan district 03 from September show Biden +2 in the district represented by Justin Amash.
Rasmussen has been publishing daily national polls since Monday, with Trump and Biden effectively tied:
Monday Trump +1
Tuesday Biden +2
Wednesday Trump +1
Thursday Biden +1.
Rasmussen's first weekly national poll from July 12 had Biden +10.
Real Clear Politics just moved Michigan back into "toss-up" on the strength of a Trafalgar poll showing Trump +2 in the state.
Biden and Obama are scheduled to appear together in Michigan on Saturday, three days before the election.
It's a business trip.