In a parliamentary system, more than doubling in size while of the two major parties, one stagnates while the other one tanks is a big W.
Also, I wouldn't put much stock in 1 and 2 being "opposing parties". They differ as much from each other as do establishment Dem and establishment GOP. If they won't co-operate, it will be because they fear their gravy train running out by going full mask off.
In a parliamentary system, more than doubling in size while of the two major parties, one stagnates while the other one tanks is a big W.
Also, I wouldn't put much stock in 1 and 2 being "opposing parties". They differ as much from each other as do establishment Dem and establishment GOP. If they won't co-operate, it will be because they fear their gravy train running out by going full mask off.