It may be that a kind of pendulum is built into United States politics: if a particular interest group scores a major victory, its supporters (i) and its adversaries (ii) their efforts, so that the victory is soon (iii) .
Blank (i)
consider new possibilities
grow complacent
become even more focused
Blank (ii)
abandon
redouble
defend
Blank (iii)
reversed
augmented
institutionalized