Bolding mine.
Twelve new surveys conducted this week in GOP-held House districts indicate that an even greater number of Republican incumbents are in danger of being voted out of office next year thanks to the government shutdown.
Public Policy Polling has now surveyed a total of 36 House districts in two weeks, and the results show Republican incumbents are in serious danger in 29 out of the 36.
...
The districts surveyed this week in which a generic Democratic challenger leads prior to any information being provided about the shutdown are:
CA-25, FL-27, MI-06, PA-06, WA-08
The additional districts in which a generic Democratic challenger leads after voters are told the Republican incumbent supported a shutdown are:
MI-08, NJ-03, VA-10
The districts in which the incumbent Republican leads throughout the survey are:
NJ-02, NY-02, WA-03, WI-01
MoveOn has a map showing all of the Republican representatives who could lose next yearhere.
Fred Upton was losing 51% to 38% to a Generic Democrat even before the poll respondents were told he supported the shutdown.  After they were told of his support, he was losing 56% to 36%.  That puts him in Bentivolio territory.  Bad Santa* was losing 53% to 37% before people were told of his support of the shutdown, 54% to 39% after.
As for Mike Rogers, he was ahead 46% to 43% before the residents of his district were told of his support, but fell behind 47% to 44%.
I had no idea Upton was in such trouble, bad enough that the shutdown didn't matter much.  As for Rogers, the shutdown could make all the difference between his keeping his seat and losing it next election.  So much for him as Pac-Man!
Mike Rogers as Pac-Man.
attribution: None Specified
*Speaking of whom, here is the segment about him on All In with Chris Hayes: Rep. Kerry Bentivolio, running the country.
Chris Hayes takes a closer look at Rep. Kerry Bentivolio, R-Mich. A former Santa-for-hire, Bentivolio is now one of the tea partiers running the country.