The pollster hasn't actually compiled results with leaners, so I did it.
For the American Action Forum (R)
800 likely voters in each poll (except for MI's first, which had 802).
MoE: 3.46% for each poll
First Wave August 30 - September 2
IAhttps://www.americanactionforum.org/insight/iowa-policy-priorities-and-the-election/Ernst +7
Ernst 49%
Greenfield 43%
Will not vote/will not vote for US Senate 1%
Undecided 7%
https://www.americanactionforum.org/insight/iowa-policy-priorities-and-the-election-october-update/October 5-8
Ernst +2
Ernst 47% (-2)
Greenfield 45% (+2)
Will not vote/will not vote for US Senate 1% (+1)
Someone else 0% (but some voters)
Hard undecided/refused 4%
MIhttps://www.americanactionforum.org/insight/michigan-policy-priorities-and-the-election/802 likely voters
Peters +6
Peters 49%
James 42%
Will not vote/will not vote for US Senate 1%
Undecided 7%
https://www.americanactionforum.org/insight/michigan-policy-priorities-and-the-election-october-update/October 3-6
Peters +7
Peters 49% (+1)
James 42% (n/c)
Will not/did not vote for US Senate 1% (n/c)
Undecided 6% (-1)