If 5% R went away consistently, then consider at only 10% R straight ticket, 9.5% of the non-straight ticket R votes Trump.
9.5% - 10% = -0.5%
At 20% R straight ticket, losing 5% of the R vote still
19% - 20% = -1%
At 40% R straight ticket, still losing 5%
38% - 40% = -2%
At 60% R straight ticket
57% - 60% = -3%
So it is a very gradual line, but the way it is set up naturally leads to a line with a negative slope when anything less than 100% party support.
I agree, 5% is the upper limit, and even then it barely goes down, so I think they clearly siphoned off votes (a straight percentage of R, with some fuzz added in), but the Romneys and Kamalas can say "I guess your polling is wrong, 20% of Rs in MI can't stand Trump!"
And their base will buy it.
If 5% R went away consistently, then consider at only 10% R straight ticket, 9.5% of the non-straight ticket R votes Trump. 9.5% - 10% = -0.5%
At 20% R straight ticket, losing 5% of the R vote still 19% - 20% = -1%
At 40% R straight ticket, still losing 5% 38% - 40% = -2%
At 60% R straight ticket 57% - 60% = -3%
So it is a very gradual line, but the way it is set up naturally leads to a line with a negative slope when anything less than 100% party support.
I agree, 5% is the upper limit, and even then it barely goes down, so I think they clearly siphoned off votes (a straight percentage of R, with some fuzz added in), but the Romneys and Kamalas can say "I guess your polling is wrong, 20% of Rs in MI can't stand Trump!" And their base will buy it.