WI Democrats won house in 2012

In OTL the Democrats won by about 1.2% of the popular vote in 2012, but due to structural factors the Republicans ended up with a large house majority. What would the consequences be if they'd won a narrow majority of the seats (ex 220-215 split).

The biggest butterfly I would see coming from this scenario is the 2013 immigration bill, which almost certainly would have passed a democratic house (unless you assume that Republicans in the senate wouldn't have supported it if they knew it would pass).

That and there might be some more conflict over the role of movement conservatives if the 2010-12 period was seen as to blame for wiping out again.


So, thoughts?
 
The issue is...how?

Democrats need to win the House Popular Vote by roughly 6 points (plus or minus one) to take the house due to the GOP stopgaps.


Maybe Romney picks Bob McDonnell as his VP and when the embezzlement and corruption issues come out it dampens Democratic turnout?
 
The issue is...how?

Democrats need to win the House Popular Vote by roughly 6 points (plus or minus one) to take the house due to the GOP stopgaps.


Maybe Romney picks Bob McDonnell as his VP and when the embezzlement and corruption issues come out it dampens Democratic turnout?

Or better yet, Romney isn't nominated at all and it's Rick Santorum who leads the GOP ticket. Polling from 2012 showed that Obama would mop the floor with Santorum; this might be good enough to flip the House over to the Democrats.
 
Top