Conversation so far:
What was the taxpayer protection pledge?
oppose any and all efforts to increase the marginal income tax rate for individuals and business.
When was the pledge put in place?
2012.
Who passed the pledge?
41 out of 47 Senate Republicans had signed ATR's.
Are there any other interesting aspects about this article?
The November 6, 2012 elections resulted in a decline in the number of Taxpayer Protection Pledge signatories in both the upper and lower houses.

Question: Was there anything else significant about the pledge?
Self-contained rewrite: Was there anything else significant about the Taxpayer Protection pledge besides the 2012 elections?