The fate of the nation is predictable unless the political center gains a foothold in both parties, and restrains excesses on the left and right.
The course of the country is painfully repetitive unless the political center takes hold in both parties and restrains the excesses of the left and the right. The course of the country is painfully repetitive unless the political center takes hold in both parties and restrains the excesses of the left and the right.
The fate of the nation is predictable unless the political center gains a foothold in both parties, and restrains excesses on the left and right.